Find the distance from (-2,5) to (5,9) (round to the nearest tenth)

Find The Distance From (-2,5) To (5,9) (round To The Nearest Tenth)

Answers

Answer 1

Answer:

8.1 hope this helps

Step-by-step explanation:

7 to the power of 2 and 4 to the power of 2

16 + 49 = 65

65 rounded to the nearest tenth is 8.1

Answer 2

Answer:

8.1

Step-by-step explanation:

Distance (d) = √(5 - -2)2 + (9 - 5)2

= √(7)2 + (4)2

= √65

= 8.0622577482985

After rounding

8.1


Related Questions

Recently, six single-family homes in San Luis Obispo County in California sold at the following prices (in $1,000s): $662, $609, $834, $702, $741, $766. Use Table 2.a.Construct a 90% confidence interval for the mean sale price in San Luis Obispo County.(Round intermediate calculations to 4 decimal places, "sample mean" and "sample standard deviation" to 2 decimal places and "t" value to 3 decimal places, and final answers to 2 decimal places.)

Answers

A 90% confidence interval for the mean sale price in San Luis Obispo County is $635.6 to $802.4.

Constructing the 90% confidence interval

Using the given data, we can calculate the sample mean and sample standard deviation as follows:

Sample mean (x) = (662 + 609 + 834 + 702 + 741 + 766) / 6 = 719

Sample standard deviation (s) = √[(∑(xi - x)²) / (n - 1)] = √[((662 - 719)² + (609 - 719)² + (834 - 719)² + (702 - 719)² + (741 - 719)² + (766 - 719)²) / (6 - 1)] = 79.44

The degrees of freedom (df) for a 90% confidence interval with n = 6 is df = n - 1 = 5.

The t-value for a 90% confidence interval with df = 5 is found using a t-table or a calculator and is approximately 2.571.

Using the formula for a confidence interval for the population mean with a known standard deviation, we have:

Lower limit = x - (t-value) * (s / √n) = 719 - (2.571) * (79.44 /√6) ≈ 635.6

Upper limit = x + (t-value) * (s / √n) = 719 + (2.571) * (79.44/ √6) ≈ 802.4

Therefore, a 90% confidence interval for the mean sale price in San Luis Obispo County is $635.6 to $802.4.

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The volume of a triangular pyramid is 99 units 3 3 . If the base and height of the triangle that forms its base are 9 units and 6 units respectively, find the height of the pyramid.

Answers

The height of the pyramid is 11 units.

What is a triangular pyramid?

A tetrahedron is a polyhedron in geometry that has four triangular faces, six straight edges, and four vertex corners. It is often referred to as a triangle pyramid. The simplest regular convex polyhedron is the tetrahedron.

Here, we have

Given: The volume of a triangular pyramid is 99 units³. If the base and height of the triangle that forms its base are 9 units and 6 units respectively.

We have to find the height of the pyramid.

The area of the triangular base = (9×6)/2

= 54/2 units

= 27units

The volume of the pyramid with a triangular base = 27units³ = area of base × height/3, or the height of the pyramid.

= 99×3/27

= 11 units

Hence,  the height of the pyramid is 11 units.

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pls help solve this question!

Answers

Answer:

Yes, by AA, since angle DEF is congruent to HEJ (vertical angles are congruent), and angle DFE is congruent to HJE.

So triangle DEF is similar to triangle HEJ.

Determine which relation is a function. Question 2 options: {(–5, 1), (–5, 0), (–2, 1), (–1, 4), (6, 2)} {(–5, 1), (–2, 0), (–2, 2), (3, 4), (6, 2)} {(–5, 1), (–2, 0), (–1, 1), (2, 4), (6, 3)} {(–5, 3), (–2, 0), (–1, 2), (6, 4), (6, 3)}

Answers

The relation that is a function is:

{(–5, 1), (–2, 0), (–1, 1), (2, 4), (6, 3)}

This relation is a function because each input (x-value) has only one output (y-value).

In the other relations, there is at least one input (x-value) that has multiple outputs (y-values), which violates the definition of a function.
Final answer:

The third option {(–5, 1), (–2, 0), (–1, 1), (2, 4), (6, 3)} is the only function, as every input (x value) has a unique output (y value).

Explanation:

To determine if a relation is a function, we have to check if each input (represented by x) has exactly one output (y). If any x value has more than one corresponding y value, then it is not a function.

The first set is not a function as –5 maps to both 1 and 0.The second set is also not a function as –2 maps to both 0 and 2.The third set {(–5, 1), (–2, 0), (–1, 1), (2, 4), (6, 3)} IS a function, as every input value has a unique output value.The fourth set is not a function, since 6 maps to both 4 and 3.

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Suppose that you must choose a password at your work that is five to seven characters long. How many possible passwords are there if: With 1his
i) each password can be any combination of alphanumeric characters ?
ii) each password must contain at least one digit? (The remaining characters are still able to be any alphanumeric value.)

Answers

The number of possible passwords for a length of 5 to 7 characters, where each character can be any alphanumeric value, is 218,340,105,584. If each password must contain at least one digit, then the number of possible passwords is 577,311,447,520.

There are 62 possible alphanumeric characters (26 uppercase letters + 26 lowercase letters + 10 digits). Therefore, the total number of possible passwords for a length of 5 to 7 characters is:

Total number of passwords = 62^5 + 62^6 + 62^7 = 218,340,105,584,896

If each password must contain at least one digit, then there are 10 choices for the first character, and 62 choices for each of the remaining four to six characters. Therefore, the total number of possible passwords is:

Total number of passwords = 10 * 62^4 + 10 * 62^5 + 10 * 62^6 = 577,311,447,520.

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a 3.0 kg particle is located on the x-axis at x = −7.0 m and a 5.0 kg particle is on the x axis at x = 3.0 m. what is the center of mass of this two–particle system?

Answers

Answer: At x = -0.75

Step-by-step explanation:

Find the center of mass by plugging into the equation.

(3.0 * -7.0 + 5.0 * 3.0) / (3.0 + 5.0) = -0.75

bir ankete katılan kişileri yüzde 35 i katılıyorum cevabını vermiştir. Ankete 200 kişi katıldığına göre katılıyorum cevabını veren kaç kişi vardır A 35 B 0 C 70 D105

Answers

Answer:

Cevap C, yani 70 kişi olarak verilmiştir. Ankete katılan 200 kişinin yüzde 35'i, 200 x 0.35 = 70 kişiye denk gelir.

Step-by-step explanation:

Junhao left his house at 17 25 and went for a walk. He returned home at 19 10. How long did he walk?​

Answers

Okay, let's break this down step-by-step:

* Junhao left at 17:25

* He returned at 19:10

* So we need to calculate the total time he was walking.

Here are the conversion steps:

* 17:25 = 17 hours and 25 minutes

* 19:10 = 19 hours and 10 minutes

* So the total time = (19 hours 10 minutes) - (17 hours 25 minutes)

* = 19*60 + 10 - 17*60 - 25

* = 1140 - 1025  = 115 minutes

So Junhao was walking for 115 minutes.

Let me know if you have any other questions!

Answer:

1 hour 45 minutes.

Step-by-step explanation:

We can count up to determine the length of time.

from 1725 to 1800 is 35 minutes.  (Remember that time is in increments of 60 minutes).  Add another hour to 1900.  Add 10 minutes to 1910

We have a total of 35 minutes plus 1 hour plus 10 minutes

1 hour 45 minutes.

Starting with a square whose perimeter is 36, I from a rectangle by doubling the length of two of the sides and tripling the length of the other two sides. This rectangle's perimeter is

Answers

Let's start by finding the length of each side of the square.

If the perimeter of the square is 36, then each side has length:

36 / 4 = 9

To form the rectangle, we double the length of two of the sides and triple the length of the other two sides. Let's double the length of two opposite sides:

2(9) = 18

And let's triple the length of the remaining two sides:

3(9) = 27

The perimeter of the rectangle is the sum of the lengths of all four sides:

Perimeter = 2(18) + 2(27)

Perimeter = 36 + 54

Perimeter = 90

Therefore, the perimeter of the rectangle is 90.

use integration in cylindrical coordinates in order to compute the volume of: u = {(x, y, z) : 0 ≤ z ≤ 36 − x 2 − y 2 }

Answers

The volume of the given region u in cylindrical coordinates is 72π cubic units.

To compute the volume of the region u using integration in cylindrical coordinates, we first need to express the equation of the region in terms of cylindrical coordinates.

In cylindrical coordinates, x = rcosθ and y = rsinθ. Therefore, we can rewrite the equation of the region as:

0 ≤ z ≤ 36 - [tex]r^2[/tex]

Next, we need to determine the bounds of integration for r and θ. Since the region is bounded by a cylinder of radius √36 = 6, we have 0 ≤ r ≤ 6. The angle θ ranges from 0 to 2π, as it covers the entire region.

The volume of the region u can then be computed as:

V = ∫∫∫ u dV
= ∫0^6 ∫[tex]0^2[/tex]π ∫0^(36-[tex]r^2[/tex]) r dz dθ dr
= ∫0^6 ∫[tex]0^2[/tex]π r(36-[tex]r^2[/tex]) dθ dr
= 2π ∫[tex]0^6[/tex] r(36-[tex]r^2[/tex]) dr
[tex]= 2π [18r^2 - (r^4)/4] evaluated from 0 to 6[/tex]
= 2π (648 - 54)
= 1188π

Therefore, the volume of the region u is 1188π cubic units.
To compute the volume of the region u = {(x, y, z) : 0 ≤ z ≤[tex]36 - x^2 - y^2[/tex]} using cylindrical coordinates, we first need to convert the given Cartesian coordinates into cylindrical coordinates. In cylindrical coordinates, we use variables (ρ, θ, z) with the following relationships:

x = ρ * cos(θ)
y = ρ * sin(θ)
z = z

Now, we can rewrite the inequality for the region u in cylindrical coordinates:

[tex]0 ≤ z ≤ 36 - (ρ * cos(θ))^2 - (ρ * sin(θ))^2[/tex]

Simplifying this inequality, we get:

[tex]0 ≤ z ≤ 36 - ρ^2[/tex]

Next, we need to determine the range for ρ and θ. Since the given region is symmetric about the z-axis, we have:

0 ≤ θ ≤ 2π

For ρ, it ranges from 0 to the maximum value at the outer edge of the region, which is the surface z = 36 - [tex]ρ^2[/tex], so:

0 ≤ ρ ≤ √36 = 6

Now we can set up the triple integral to compute the volume:

Volume = ∫∫∫ ρ * dρ * dθ * dz

The limits of integration for ρ, θ, and z are as follows:

ρ: 0 to 6
θ: 0 to 2π
z: 0 to 36 - [tex]ρ^2[/tex],

Now we can write the full integral:

Volume = ∫(θ=0 to 2π) ∫(ρ=0 to 6) ∫(z=0 to 36-[tex]ρ^2[/tex], , ) ρ * dz * dρ * dθ

Evaluating this triple integral, we get:

Volume = 72π cubic units

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write 17/20 as a fraction decimal percent.

Answers

Written as a fraction, the amount is 17/20 .

But a fraction actually means "division".  When you see "17/20", it means "17 divided by 20".

If you actually go ahead and DO the division problem (with a pencil or on your calculator) that the fraction is talking about, the answer you get is the same amount as the fraction, but written as a decimal.

The same amount as 17/20, written as a decimal, is 0.85 .

The same amount as 17/20, written as a percent, is  85% .

The number of hours of daylight in Chicago, Illinois, is modeled by the periodic function f(x)=2.95sin(2π365x)+12.21 where x represents the number of days since March 20th. Question 1 What is the period of the function?

Answers

The period of function is approximately 0.6465 days, which means that the pattern of daylight hours repeats approximately every 0.6465 days, or about every 15.55 hours.

What is periodic function?

A periodic function is a function that repeats its values in a regular pattern over a specified interval or set of input values.

More specifically, a function f(x) is said to be periodic with period P if, for all values of x in the domain of f(x), we have:

f(x + P) = f(x)

The period of a periodic function is the distance along the x-axis between two consecutive peaks or troughs of the graph of the function. For the given function f(x)=2.95sin(2π365x)+12.21, the coefficient of x in the argument of the sine function is 2π365, which represents the frequency of the oscillation.

The period P of a sine function with frequency f is given by:

P = 1/f

Therefore, for the given function, the period is:

P = 1/f = 1/(2π365) ≈ 0.00177 years

However, since the function is modeling the number of hours of daylight, it is more convenient to express the period in terms of days. One year has 365 days, so we can convert the period to days by multiplying it by 365:

P = 0.00177 × 365 ≈ 0.6465 days

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please help i’ll mark brainliest

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The type of quadrilaterals, based on the description of the diagonals are;

a) Isosceles trapezoid

b) Square or rhombus

c) Kite or parallelogram

What is a quadrilateral?

A quadrilateral is a four sided polygon.

The properties of the quadrilateral are;

a) The diagonals are congruent but are not perpendicular

b) The diagonals are congruent and perpendicular bisectors

c) One diagonal bisects an angle and the other diagonal

The type of quadrilaterals are;

a) Whereby the diagonals are congruent and the diagonals are not perpendicular, indicates that a possible quadrilateral is an isosceles trapezoid

b) The quadrilaterals with congruent and perpendicular diagonals indicates that the possible quadrilaterals are a square or a rhombus

c) A quadrilateral that bisects an angle and one diagonal indicates that the quadrilateral is a parallelogram or kite

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Problems 11 through 23 and Case Problem 2 require the use of data mining software. If using R/Rattle to solve these problems, refer to Appendix: R/Rattle Settings to Solve Chapter 5 Problems. If using JMP Pro to solve these problems, refer to Appendix: JMP Pro Settings to Solve Chapter 5 Problems.
Association Rules of Browser Histories. Cookie Monster Inc. is a company that specializes in the development of software that tracks web browsing history of individuals. Cookie Monster Inc. is interested in analyzing its data to gain insight on the online behavior of individuals. A sample of browser histories is provided in the files CookieMonsterBinary and CookieMonsterStacked that indicate which websites were visited by which customers. Use a minimum support of 4% of the transactions (800 of the 20,000 total transactions) and a minimum confidence of 50% to generate a list of association rules.
a. Based on the top 14 rules, which three web sites appear in the association rules with the largest lift ratio?
b. Identify the association rule with the largest lift ratio that also has Pinterest as the antecedent. What is the consequent web site in this rule?
c. Interpret the confidence of the rule from part (b). While the antecedent and consequent are not necessarily chronological, what does this rule suggest?
d. Identify the association rule with the largest lift ratio that also has TheEveryGirl as the antecedent. What is the consequent web site in this rule?
e. Interpret the lift ratio of the rule from part (d).

Answers

The lift ratio indicates a strong association between the two websites.

Association rule mining is a data mining technique used to find patterns in datasets. It is particularly useful for finding relationships between variables in large datasets. In this case, the dataset consists of browser histories, and we are interested in finding association rules between the websites that were visited.

The two main measures used in association rule mining are support and confidence. Support is the proportion of transactions that contain both the antecedent and the consequent of a rule, while confidence is the proportion of transactions containing the antecedent that also contain the consequent. Lift ratio is another measure used to evaluate the strength of an association rule. It is the ratio of the observed support to the expected support, assuming the antecedent and the consequent are independent.

To generate a list of association rules, we can use an algorithm like Apriori. The Apriori algorithm starts by finding frequent itemsets, or sets of items that occur together in a sufficient number of transactions. We can then use these frequent itemsets to generate association rules by dividing them into antecedents and consequents and calculating the support and confidence of each rule.

Based on the top 14 rules, we can identify the three web sites that appear in the association rules with the largest lift ratio. Lift ratio is a measure of how much more often the antecedent and consequent appear together than would be expected if they were independent. Therefore, high lift ratios indicate strong associations between the antecedent and consequent. We can sort the rules by lift ratio and identify the three web sites that appear in the rules with the highest lift ratios.

To identify the association rule with the largest lift ratio that also has a specific antecedent, we can filter the rules by the antecedent and sort them by lift ratio. We can then examine the consequent of the rule with the highest lift ratio.

The confidence of a rule indicates how often the consequent is observed in transactions containing the antecedent. In this case, the rule suggests that there is a high probability that customers who visit Pinterest also visit the consequent website. While the antecedent and consequent are not necessarily chronological, the rule suggests that there may be a relationship between the two websites that prompts customers to visit them together.

The lift ratio of a rule indicates the strength of the association between the antecedent and consequent. In this case, the rule suggests that customers who visit TheEveryGirl are much more likely to also visit the consequent website than would be expected if the two websites were independent. Therefore, the lift ratio indicates a strong association between the two websites.

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At the dairy 3 choc bars and 4 iceblocks cost $20, while 4 choc bars and 3 iceblocks cost $22.
How much would 6 choc bars and 2 iceblocks cost?
(A) $16
(B) $18
(C) $24
(D) $26
(E) $28

Answers

6 choc bars and 2 iceblocks would cost a total of $28

Calculating how much 6 choc bars and 2 iceblocks would cost?

Let's assign a variable to the cost of one chocolate bar, say "c", and a variable to the cost of one ice block, say "i". Then we can set up a system of equations based on the information given:

3c + 4i = 20

4c + 3i = 22

Using a graphing tool, we have

c = 4 and i = 2

So the cost of one chocolate bar is $4 and the cost of one ice block is $2

Finally, we can calculate the cost of 6 chocolate bars and 2 ice blocks:

6c + 2i = 6 * 4 + 2 * 2

6c + 2i = 28

Hence, the cost is $28

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Find the measurement of angle A and round the answer to the nearest tenth. :)
(Show work if you can pleasee)

Answers

The measurement of angle A to the nearest tenth is equal to 40.8 degrees.

How to calculate the magnitude of tan A?

In order to determine the magnitude of tan A, we would apply the law of tangent because the given side lengths represent the adjacent side and opposite side of a right-angled triangle.

tan(θ) = Opp/Adj

Where:

Adj represents the adjacent side of a right-angled triangle.Hyp represents the opposite side of a right-angled triangle.θ represents the angle.

Based on the information provided in the image, we can logically deduce the following parameters:

Adj = 22 units.Opp = 19 units.

By substituting the parameters into the law of tangent formula, we have the following;

TanA = 19/22

A = tan⁻¹(0.8636)

A = 40.8 degrees.

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I'm a bit confused on how to do this... please help asap

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The value of CD for the circle O with tangent AB and the secant through A which intersect the circle at points C and D is equal to 8 cm

What are circle theorems

Circle theorems are a set of rules that apply to circles and their constituent parts, such as chords, tangents, secants, and arcs. These rules describe the relationships between the different parts of a circle and can be used to solve problems involving circles.

For the tangent AB and the secant through A which intersect the circle at points C and D;

AB² = AC × CD {secant tangent segments}

(4 cm)² = 2 cm × CD

CD = 16 cm²/2 cm

CD = 8 cm

Therefore, the value of CD for the circle O with tangent AB and the secant through A which intersect the circle at points C and D is equal to 8 cm.

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Answer this math question for ten points :)

Answers

The trigonometric ratios are given as follows:

sin(A) = 4/5.cos(A) = 3/5.tan(A) = 4/3.sin(B) = 3/5.cos(B) = 4/5.tan(B) = 3/4.

What are the trigonometric ratios?

The three trigonometric ratios are the sine, the cosine and the tangent, and they are defined as follows:

Sine of angle = length of opposite side to the angle divided by the length of the hypotenuse.Cosine of angle = length of adjacent side to the angle divided by the length of the hypotenuse.Tangent of angle = length of opposite side to the angle divided by the length of the adjacent side to the angle.

5 is the hypotenuse length, while for angle A, we have that the sides are given as follows:

Opposite side of 4.Adjacent side of 3.

Hence the ratios are given as follows:

sin(A) = 4/5.cos(A) = 3/5.tan(A) = 4/3.

For angle B, we have that 4 is now the adjacent side, while 3 is the opposite side, hence:

sin(B) = 3/5.cos(B) = 4/5.tan(B) = 3/4.

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The question is in the image

Answers

Answer: the answer is f(3)=29

Step-by-step explanation:

Use traces to sketch the surface. −x^2 + 7y^2 − z^2 = 7 please elaborate o n how you got this

Answers

The surface will be a hyperboloid of two sheets, since it has one positive and two negative squared terms. The xz- and yz-planes will contain hyperbolas, while the xy-plane will contain an ellipse.

To sketch the surface given by the equation −x² + 7y² − z² = 7, we can start by analyzing its traces in the x-, y-, and z-planes:

1. x-trace: Set x = 0 in the equation:
7y² - z² = 7
Divide by 7:
y² - (z²/7) = 1
This is a hyperbola in the yz-plane.

2. y-trace: Set y = 0 in the equation:
-x² - z² = 7
Divide by -1:
x² + z² = -7
Since x² and z² are always non-negative, there is no y-trace.

3. z-trace: Set z = 0 in the equation:
-x² + 7y² = 7
Divide by 7:
-(x²/7) + y² = 1
This is an ellipse in the xy-plane.

Now that we have the traces, we can sketch the surface by visualizing how these traces intersect and extend in 3D space. The surface will be a hyperboloid of two sheets, since it has one positive and two negative squared terms. The xz- and yz-planes will contain hyperbolas, while the xy-plane will contain an ellipse.

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Determine if the following series converges or diverges. Give reasons for your answer. 00 n+ 1 Σ + 1 n2 + 5n on n=1 Choose the correct answer below. n+ 1 1 O A. Since .->nfor all n >1 and the series Er? diverges, the given series diverges by the comparison test. na +5n on n=1 1 1 O B. Since n+1 1 n2 + 5n 6n for all n> 1 and the series converges, the given series converges by the comparison test. 6n 6n2 n=1 00 1 1 O C. Since n+ 1 1 na + 5n 6n for all n >1 and the series diverges, the given series diverges by the comparison test. 2 On n=1 623

Answers

The given series Σ (n+1)/(n² + 5n) from n=1 to infinity is divergent and the correct option is option A.

We have to determine if the following series converges or diverges: Σ (n+1)/(n² + 5n) from n=1 to infinity.

To determine the convergence or divergence of the series, we can use the comparison test. We can compare the given series to another series with known convergence properties.

Let's compare it to the series Σ 1/n.

For all n > 1, we have (n+1)/(n² + 5n) < 1/n since n² + 5n > n.

Now, we know that the series Σ 1/n, also known as the harmonic series, is a divergent series.

Since (n+1)/(n² + 5n) < 1/n for all n > 1, and the series Σ 1/n diverges, the given series also diverges by the comparison test.

The correct answer is:
A. Since (n+1)/(n² + 5n) < 1/n for all n > 1 and the series Σ 1/n diverges, the given series diverges by the comparison test.

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Mr. Hedges was tired one night and wrote the (awful, terrible, & atrocious) work below. Identify
his error and correct the mistake:

(Look in the picture)

Answers

Answer:

See below

Step-by-step explanation:

Mr. Hedges added the denominators together when he shouldn't have.

-12/14 + -7/14 DOES NOT EQUAL -19/28, you can't add denominators in fractions. Instead, they stay the same, while the numerators are added together.

The correct answer should be -19/14, by leaving the denominator alone and adding the numerators.

Hope this helps!

the total surface area of a closed cylinder is 5000cm3 find the dimensions of the cylinder that maximize its volume and state this maxiumum volume. veryfiy that is is a maximum point

Answers

The dimensions of the closed cylinder that maximize its volume are radius=25 cm and height=40 cm. The maximum volume is 62,500 cubic cm.

Given that the total surface area of the closed cylinder is 5000 cm^2, we can write the equation for the total surface area as:

2πrh + 2πr^2 = 5000

We want to find the dimensions that maximize the volume of the cylinder. The volume of a cylinder is given by:

V = πr^2h

We can use the equation for the total surface area to solve for h in terms of r:

h = (5000 - 2πr^2) / (2πr)

Substituting this expression for h into the equation for the volume, we get:

V = πr^2[(5000 - 2πr^2) / (2πr)]

Simplifying this expression, we get:

V = (2500πr - πr^3)

To find the maximum volume, we take the derivative of V with respect to r and set it equal to zero:

dV/dr = 2500π - 3πr^2 = 0

Solving for r, we get r=25 cm.

We can then substitute this value of r into the expression for h to get h=40 cm.

Therefore, the dimensions of the cylinder that maximize its volume are radius=25 cm and height=40 cm.

Substituting these values into the equation for the volume, we get:

V = π(25)^2(40) = 62,500 cubic cm.

To verify that this is a maximum point, we can take the second derivative of V with respect to r:

d^2V/dr^2 = -6πr

At r=25 cm, this is negative, which indicates that we have a maximum point. Therefore, the dimensions calculated above do indeed maximize the volume of the cylinder.

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To convert a nominal value to a real value in dollar terms, the base year index must be set at 100.
False
True

Answers

To convert a nominal value to a real value in dollar terms, the base year index must be set at 100.The answer: True

1. Nominal value represents the face value or stated value of a currency, security, or financial instrument without considering the effects of inflation or changes in the purchasing power of money.
2. Real value is the value adjusted for inflation, reflecting the purchasing power of a currency in a given base year.
3. To convert a nominal value to a real value in dollar terms, we need to adjust the nominal value for inflation using a price index.
4. The base year index is typically set at 100, which allows for easy comparison and calculation of the real value.
5. To convert the nominal value to a real value, divide the nominal value by the price index in the current year and then multiply by the base year index (100). This will give you the real value in dollar terms.

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To convert a nominal value to a real value in dollar terms, the base year index must be set at 100.The answer: True

1. Nominal value represents the face value or stated value of a currency, security, or financial instrument without considering the effects of inflation or changes in the purchasing power of money.
2. Real value is the value adjusted for inflation, reflecting the purchasing power of a currency in a given base year.
3. To convert a nominal value to a real value in dollar terms, we need to adjust the nominal value for inflation using a price index.
4. The base year index is typically set at 100, which allows for easy comparison and calculation of the real value.
5. To convert the nominal value to a real value, divide the nominal value by the price index in the current year and then multiply by the base year index (100). This will give you the real value in dollar terms.

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show that ∃x(p(x) ∨ q(x)) and ∃xp(x) ∨ ∃xq(x) are logically equivalent

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Both statements imply each other, we can conclude that ∃x(p(x) ∨ q(x)) and ∃xp(x) ∨ ∃xq(x) are logically equivalent.

How to show that ∃x(p(x) ∨ q(x)) and ∃xp(x) ∨ ∃xq(x) are logically equivalent?

We'll demonstrate that they imply each other.

1. First, let's assume ∃x(p(x) ∨ q(x)). This means that there exists an x such that either p(x) is true or q(x) is true (or both).

2. Since p(x) or q(x) is true for some x, we can say that either there exists an x for which p(x) is true or there exists an x for which q(x) is true. This can be written as ∃xp(x) ∨ ∃xq(x).

Now, let's assume ∃xp(x) ∨ ∃xq(x).

3. This statement means that there exists an x for which p(x) is true, or there exists an x for which q(x) is true (or both).

4. From this, we can conclude that for some x, either p(x) is true or q(x) is true. So, we can write this as ∃x(p(x) ∨ q(x)).

Since we've shown that both statements imply each other, we can conclude that ∃x(p(x) ∨ q(x)) and ∃xp(x) ∨ ∃xq(x) are logically equivalent.

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Amange in ascending order: 9-3,4-6.2-4) 1-7-31,-5-3x2


pls help with this
pls enter the correct answer​

Answers

The ascending order of the expression from smallest to highest is: -39, -11, -8, -6, 2.

What is the expressions about?

In the above case, we need to first break down or simplify the expressions and thus it will be:

9 + 3 = -6

-4 + 6 = 2

2(-4) = -8

1 - 7 - 31 = -39

-5 - 3 x 2 = -11

So now, we need to arrange them and this will be in ascending order from smallest to highest  and it will be: -39, -11, -8, -6, 2

Therefore, the ascending order of the expression is : -39, -11, -8, -6, 2.

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See correct question below

17. Arrange -9 +3, -4+6, 2(-4), 1-7-31, -5-3x2 in ascending order.

the given curve is rotated about the y-axis. find the area of the resulting surface. y = 1 4 x2 − 1 2 ln(x), 1 ≤ x ≤ 3

Answers

The area of the resulting surface formed by rotating the curve y = 1/4 x^2 − 1/2 ln(x) about the y-axis is approximately 148.81 square units.

To find the area of the surface formed by rotating the curve y = 1/4 x^2 − 1/2 ln(x) about the y-axis, we can use the formula for the surface area of a solid of revolution

S = 2π ∫[a,b] y(x) √(1 + (y'(x))^2) dx,

where a and b are the limits of integration (in this case, 1 and 3), y(x) is the equation of the curve being rotated, and y'(x) is its derivative.

First, we need to find y'(x)

y'(x) = 1/2 x − 1/2x^(-1)

Next, we can substitute y(x) and y'(x) into the formula

S = 2π ∫[1,3] [(1/4 x^2 − 1/2 ln(x)) √(1 + (1/2 x − 1/2x^(-1))^2)] dx

Simplifying the integrand

S = 2π ∫[1,3] [(1/4 x^2 − 1/2 ln(x)) √(1/4 x^2 + 1/4x^(-2))] dx

S = π ∫[1,3] [x^2√(x^2+1) − 2x ln(x)√(x^2+1)] dx

This integral can be evaluated using integration by parts or a suitable substitution. After performing the integration, we get

S = π/6 (54√10 − 5 ln(27) − 6)

= 148.81 square units.

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The sum of one positive number and the square of another equals to 30. Find the numbers so that their product is as large as possible. A 2 decimal answer or exact answer is ok. The maximal value of the product is:

Answers

To solve this problem, we can use the technique of completing the square. Let x be the smaller of the two numbers, and y be the larger. Then we know that:

x + y^2 = 30

We want to maximize the product xy. To do this, we can rewrite the equation above as:

y^2 = 30 - x

Now we can use the fact that the square of a number is always non-negative to our advantage. We know that y^2 is always non-negative, so this means that 30 - x must also be non-negative. Therefore, we have:

x <= 30

Now we can maximize the product of xy by finding the value of x that makes y as large as possible. We can do this by completing the square:

y^2 = 30 - x
y^2 = -(x - 30)

This is a downward-facing parabola, so its maximum occurs at its vertex. The vertex occurs at x = 30, so:

y^2 = -(30 - 30) = 0
y = 0

Therefore, the maximum product occurs when x = 15 and y = 0 or x = 0 and y = 15. In either case, the product xy is 0.

what is the wavelength (in nm) of an electron moving with a speed of 5.97 mms-1, the mass of an electron is 9.11 x 10-28 g.

Answers

the wavelength of the electron is approximately 122 nm To find the wavelength of an electron, we can use the de Broglie wavelength formula:


wavelength (λ) = h / (m * v)

where:
- h is Planck's constant (6.63 x 10^-34 Js)
- m is the mass of the electron (9.11 x 10^-28 g, which needs to be converted to kg)
- v is the speed of the electron (5.97 mm/s, which needs to be converted to m/s)


Step 1: Convert the mass of the electron to kg:
9.11 x 10^-28 g * (1 kg / 1000 g) = 9.11 x 10^-31 kg


Step 2: Convert the speed of the electron to m/s:
5.97 mm/s * (1 m / 1000 mm) = 5.97 x 10^-3 m/s


Step 3: Plug the values into the de Broglie wavelength formula:
λ = (6.63 x 10^-34 Js) / (9.11 x 10^-31 kg * 5.97 x 10^-3 m/s)


Step 4: Calculate the wavelength:
λ = (6.63 x 10^-34 Js) / (5.44 x 10^-33 kg m/s) ≈ 1.22 x 10^-10 m


Step 5: Convert the wavelength to nm:
1.22 x 10^-10 m * (1 x 10^9 nm / 1 m) ≈ 122 nm


So, the wavelength is approximately 122 nm.

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Find examples of decimals in a newspaper or magazine write a real world problem in which you could you would divide decimals

Answers

Answer:

Step-by-step explanation:

22

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