Answer:
1120π grams
==> 3518.58 grams using value of π = 3.14159 or
==> 3520 grams using value of π = 22/7
Step-by-step explanation:
Volume of a cylinder = πr²l where r is the radius of the base and h is the length of cylinder
The diameter of the cylinder, d = 8cm and radius = d/2 = 4cm
Length = 1 meter = 100 cm
Here, volume V = π.4².100 = π x 16 x 100 = 1600π cm³
Since 1 cm³ has a mass of 0.7gm total mass
M = 0.7V = (0.7)1600π =1120π gm
Using the ratio 22/7 for pi we get
M = 1120 x 22/7 = 3520 g
If we use the more accurate value of π as 3.14159 then we get
M = 1120 x 3.14.159 = 3518.58 g which is more accurate
enter the ordered pair that is the solution to the system of equations graphed below. y= -4x+2 y=x-3
Answer:
Step-by-step explanation:
-4x + 2 = x - 3
-5x + 2 = -3
-5x = -5
x = 1
y = 1 - 3
y = -2
(1, -2)
If a cylinder has a volume of 120 cm3 and a cone has a volume of 360 cm3, is it possible that the two cones have congruent bases and congruent heights?
No, the cone and the cylinder can't have congruent heights and bases.
is it possible that the two cones have congruent bases and congruent heights?
The volume of a cylinder of radius R and height H is:
V = pi*R^2*H
And for a cone of radius R and height H is:
V = pi*R^2*H/3
So, for the same dimensions R and H, the cone has 1/3 of the volume of the cylinder.
Here, the cylinder has a volume of 120cm³ and the cone a volume of 360cm³, so the cone has 3 times the volume of the cylinder.
This means that the measures must be different, so the cone and the cylinder can't have congruent heights and bases.
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If events A and B are independent, and the probability that event A occurs is 83%, what must be true?
The probability that event B occurs is 17%.
The probability that event B occurs is 83%.
The probability that event A occurs, given that event B occurs, is 83%.
The probability that event B occurs, given that event A occurs, is 83%.
Answer:
c
Step-by-step explanation:
edge 2023
The probability that event B occurs is 83%. Therefore, option C is the correct answer.
What is the independent variable?Dependent and independent variables are variables in mathematical modeling, statistical modeling and experimental sciences. Dependent variables receive this name because, in an experiment, their values are studied under the supposition or demand that they depend, by some law or rule, on the values of other variables.
Given that, events A and B are independent, and the probability that event A occurs is 83%.
If the outcome of one event has no bearing on the fate of the other, the two events are said to be independent events. Instead, we may say that an event is considered independent if it does not affect the likelihood of another event.
Since, the events A and B are independent, if the probability that event A occurs is 83%.
Then, the probability that event B occurs is 83%.
Therefore, option C is the correct answer.
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please help 35 points!!
Answer:
67m²
Step-by-step explanation:
12m + 6m + 4m + 36 m 8m = 67m²
What is the maximum probability of committing a Type I error that the researcher is willing to commit? a. Critical values b. p-value c. Level of Significance d. Confidence level
Answer: c. Level of Significance
This is the alpha value
alpha is a greek letter with the symbol [tex]\alpha[/tex]
A type 1 error is when the researcher rejects the null, but the null was true (meaning the researcher shouldn't have rejected the null).
I need help finding the values of the last boxes shown in the image.
The region R is bounded by the x-axis, the straight line in the graph and the vertical line x+2.
The volume of the region R bounded by the x-axis is: [tex]\mathbf{\iint_R(x^2+y^2)dA = \int ^{tan^{-1}(4)}_{0} \int^{\frac{2}{cos \theta}}_{0} \ r^3 dr d\theta}[/tex]
What is the volume of the solid revolution on the X-axis?The volume of a solid is the degree of space occupied by a solid object. If the axis of revolution is the planar region's border and the cross-sections are parallel to the line of revolution, we may use the polar coordinate approach to calculate the volume of the solid.
In the graph, the given straight line passes through two points (0,0) and (2,8).
Therefore, the equation of the straight line becomes:
[tex]\mathbf{y-y_1 = \dfrac{y_2-y_1}{x_2-x_1}(x-x_1)}[/tex]
where:
(x₁, y₁) and (x₂, y₂) are two points on the straight lineThus, from the graph let assign (x₁, y₁) = (0, 0) and (x₂, y₂) = (2, 8), we have:
[tex]\mathbf{y-0 = \dfrac{8-0}{2-0}(x-0)}[/tex]
y = 4x
Now, our region bounded by the three lines are:
y = 0 x = 2y = 4xSimilarly, the change in polar coordinates is:
x = rcosθ, y = rsinθwhere;
x² + y² = r² and dA = rdrdθNow
rsinθ = 0 i.e. r = 0 or θ = 0rcosθ = 2 i.e. r = 2/cosθrsinθ = 4(rcosθ) ⇒ tan θ = 4; θ = tan⁻¹ (4)⇒ r = 0 to r = 2/cosθ θ = 0 to θ = tan⁻¹ (4)Then:
[tex]\mathbf{\iint_R(x^2+y^2)dA = \int ^{tan^{-1}(4)}_{0} \int^{\frac{2}{cos \theta}}_{0} \ r^2 (rdr d\theta )}[/tex]
[tex]\mathbf{\iint_R(x^2+y^2)dA = \int ^{tan^{-1}(4)}_{0} \int^{\frac{2}{cos \theta}}_{0} \ r^3 dr d\theta}[/tex]
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Write the prime for factorization of 4
Answer:
2×2 mark me brainlist
4divided by 22×2Please solve (21 points)
Answer:
he width of the ravin is 47
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
3^5
Step-by-step explanation:
exponents:
1 - ( - 4 ) = 5
Therefore,
3^5
Item 11 In the table, Pattern A uses the rule "add 5" and Pattern B uses the rule "add 10." Pattern A 10 15 20 25 30 Pattern B 20 30 40 50 60 Which statement is true? Every term in Pattern B is 12 the corresponding term in Pattern A. Every term in Pattern B is 10 times the corresponding term in Pattern A. Every term in Pattern B is 2 times the corresponding term in Pattern A. Every term in Pattern B is 10 more than the corresponding term in Pattern A. PLESAAAA HELP I NEED TO PASS 5 GRADE IF I FAIL I WONT PASS PLSSSSSSSSSSSSSS tysm!
The Pattern B is the twice of the Pattern A. Then the correct option is C.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
Item 11 In the table,
Pattern A uses the rule "add 5" and Pattern B uses the rule "add 10".
Pattern A 10 15 20 25 30
Pattern B 20 30 40 50 60
Then the Pattern B is the twice of the Pattern A.
Then the correct option is C.
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Check whether the following differential equation is exact or not. If not, then convert it into an exact differential equation.
[tex]2ydx+(x-sin\ y^{\frac{1}{2} } )dy =0[/tex]
The given differential equation is not exact, if we convert it to an exact one, we get:
[tex]2ydx + 2*(x - sin(y)^{1/2})*dy = 0[/tex]
Is the differential equation exact or not?A differential equation:
[tex]Ndx + Mdy = C[/tex]
Is exact only if:
[tex]\frac{dM}{dy} = \frac{dN}{dx}[/tex]
In this case, we have:
[tex]2ydx + (x - sin(y)^{1/2})*dy = 0\\\\then:\\\\N = 2y\\M = x - sin(y)^{1/2}[/tex]
If we differentiate, we will get:
[tex]\frac{dN}{dy} = 2\\\\\frac{dM}{dx} = 1[/tex]
So, to convert this to an exact differential equation, we need to add a factor 2 to N, this will give:
[tex]2ydx + 2*(x - sin(y)^{1/2})*dy = 0[/tex]
This is, in fact, an exact differential equation.
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Which statements are true about the dollhouses? Select three options.
The space inside dollhouse 1 can be found using the equation V = 6 (6) (5) + one-half (6) (6) (4).
The space inside dollhouse 1 can be found using the equation V = 6 (6) (5) + one-third (6) (6) (4).
The space inside dollhouse 2 can be found using the equation V = 6 (6) (5) + one-half (6) (6) (4).
The space inside dollhouse 2 can be found using the equation V = 6 (6) (5) + one-third (6) (6) (4).
The space inside dollhouse 1 is 24 inches cubed greater than the space inside dollhouse 2.
The statements that are true about the dollhouses is: 1,4,5.
True statement about dollhouseThe space inside dollhouse 1 can be found using the equation V = 6 (6) (5) + one-half (6) (6) (4).
Space inside dollhouse 1:
V = 6 (6) (5) + 1/2 (6) (6) (4)
V=180+72
V=252 inches
The space inside dollhouse 2 can be found using the equation
V = 6 (6) (5) + 1/3 (6) (6) (4)
V=180+48
V=228
The space inside dollhouse 1 is 24 inches cubed greater than the space inside dollhouse 2.
V1=252
V2=228
Hence:
252-228=24 inches cubed
V1 ≥V2
Therefore the statements that are true about the dollhouses is: 1,4,5.
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The regular price of a CN Tower Souvenir was $32, During its sale, The price was reduced down by $24, Find the percent discount
Answer:
Discount of 25%
Step-by-step explanation:
To find the percent discount, subtract the big number minus small number then divide by the original number.
[tex]\frac{32-24}{32}[/tex]
[tex]\frac{8}{32} \\[/tex]
Reduce
[tex]\frac{1}{4}[/tex]
Change to a decimal by dividing
1/4 = 0.25
Change to a percent by moving the decimal two places right.
0.25 -----> 25%
Represent "The product of 9 and a number y" mathematically.
Answer:
9y
Step-by-step explanation:
Mathematicaly, the product of 9 and a number "y" is:
9y
The Niagara Falls ferris wheel has a diameter of 48 meters, and one revolution takes 2.25 minutes to complete. Riders can see Niagara falls if they are higher than 41 meters above the ground. What are the time intervals when the rider can see Niagara Falls if they complete 3 complete revolutions, if the rider gets on at a height of 0.5 m at t=0 min?
The time intervals when the riders could see Niagara falls are; 0.834 < t < 1.416 and (3.084, 3.666)
How to interpret Cycle Graphs?
From the diagram attached, we can say that;
Period = 2π/k
where;
k = 2π/2.25
k = 8π/9
Thus;
h(t) = -(48/2) cos (8π/9)t + ((48/2) + 0.5)
h(t) = -24cos (8π/9)t + 24.5
Riders can see Niagara falls if they are higher than 41 meters above the ground. Thus;
41 = -24cos (8π/9)t + 24.5
41 - 24.5 = -24cos (8π/9)t
16.5 = -24cos (8π/9)t
-0.6875 = cos (8π/9)t
cos⁻¹0.6875 = (8π/9)t
t = 0.834 min
Thus, time interval is between;
0.834 < t < (2.25 - 0.834)
⇒ 0.834 < t < 1.416 and
(2.25 + 0.834) < t < (2.25 + 1.416)
⇒ (3.084, 3.666)
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1 + 3 + 5 + A+9 divide by 5
Answer:
1 + 3 + 5 + A+9 divide by 5
Step-by-step explanation:
Write the numbers in each circle that is described by the attribute written outside the circle. Numbers in the overlapping regions must meet the requirements of each circle. Justify why you placed the numbers in the overlapping regions.
The attached image represents the completed Venn diagrams
How to complete the circles?Diagram 1
We have:
Multiples of 3 and Multiples of 10
When the sets are populated, we have:
Multiples of 3 = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
Multiples of 10 = 10, 20, 30
Both = 30
Next, we complete the circles using the above data values
See attachment 1
Diagram 2
We have:
Multiples of 2, Multiples of 3 and Multiples of 5
When the sets are populated, we have:
Multiples of 2 = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30
Multiples of 3 = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30
Multiples of 5 = 5, 10, 15, 20, 25, 30
Multiples of 2 and 3 = 6, 12, 18, 24 and 30
Multiples of 2 and 5 = 10, 20 and 30
Multiples of 3 and 5 = 15 and 30
All = 30
Next, we complete the circles using the above data values
See attachment 2
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Arianna invests $5600 in a new savings account which earns 5.4% annual interest, compounded quarterly. What will be the value of her investment after 8 years? Round to the nearest cent.
The value of her investment after 8 years is $8,293.81.
What do interest rates mean?
An interest rate tells you how high the cost of borrowing is, or high the rewards are for saving.
Given:
P= $5600
r= 5.4%
t= 8 years
Then solve the equation for A
A = P(1 + r/n)^nt
A = 5,400.00[tex](1 + 0.054/4)^{4/8}[/tex]
A = 5,400.00[tex](1 + 0.0135)^{32}[/tex]
A = $8,293.81
Hence, the value will be $8,293.81.
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Uhm it's confusing somehow mind helping?
Answer:
yo can maybe try converting those to every possible answer and you can find the answer that way.
Step-by-step explanation:
please help me with thiss
Answer:
the fourth option is correct
Step-by-step explanation:
the first equation represents that the cost of 6 bananas is the same as the cost of nine apples. therefore, y is the cost of a single banana and x is the cost of a single apple. the second equation represents the situation of you buying 4 bananas and 2 apples for $8. If x and y represent the cost of each fruit, then the point (x,y) = (1,1.5) means that x, the cost of an apple, is $1.00 and that y, the cost of a banana, is $1.50.
solve for b
−9b)+b=2b−(b+1)
Answer:
[tex]b = \frac{1}{9}[/tex]
Step-by-step explanation:
-9b + b = 2b - (b + 1)
Let's simplify by taking out the parenthesis.
-9b + b = 2b - b - 1
Now, we add like terms.
-8b = b - 1
Now, let's subtract b from both sides of the equal sign in order to isolate b.
-8b - b = b - 1 - b
Simplify!
-9b = -1
Divide both sides by -9.
-9b ÷ b = -1 ÷ -9
Simplify.
[tex]b = \frac{1}{9}[/tex]
Answer:
[tex]b = \frac{1}{9} [/tex]
Step-by-step explanation:
[tex] - 9b + b = 2b - (b + 1) [/tex]
Solve the brackets.
[tex] - 9b + b = 2b - b - 1[/tex]
Combine like terms.
[tex] - 8b = b - 1[/tex]
Take b to the left side.
[tex] - 8b - b = - 1[/tex]
Combine like terms.
[tex] - 9b = - 1[/tex]
Divide both sides by -9.
[tex] \frac{ - 9b}{ - 9} = \frac{ - 1}{ - 9} \\ b = \frac{1}{9} [/tex]
Find the inverse
[tex]f(x)={e}^{3x - 1} [/tex]
Tank you for your support
Answer:
[tex]f^{-1}(x)=\dfrac{1}{3}(\ln x +1)[/tex]
Step-by-step explanation:
Given function:
[tex]f(x)=e^{3x-1}[/tex]
Replace f(x) with y:
[tex]\implies y=e^{3x-1}[/tex]
Take natural logs of both sides:
[tex]\implies \ln y = \ln e^{3x-1}[/tex]
Apply the Power Log Law [tex]\ln x^n=n\ln x[/tex] :
[tex]\implies \ln y = (3x-1)\ln e[/tex]
As [tex]\ln e=1[/tex] then:
[tex]\implies \ln y = 3x-1[/tex]
Rearrange to make x the subject:
[tex]\implies 3x=\ln y +1[/tex]
[tex]\implies x=\dfrac{1}{3}(\ln y +1)[/tex]
Swap x for [tex]f^{-1}(x)[/tex] and y for x:
[tex]\implies f^{-1}(x)=\dfrac{1}{3}(\ln x +1)[/tex]
A number multiplied by third of itself makes the product 10584, what is the number ?
Answer:
-15876
Step-by-step explanation:
|correct me if I'm not correct|
(Hope it's Help)
[keep safe]
The number is 15876
What is Number system?Number systems are systems in mathematics that are used to express numbers in various forms and are understood by computers. A number is a mathematical value used for counting and measuring objects, and for performing arithmetic calculations. Numbers have various categories like natural numbers, whole numbers, rational and irrational numbers, and so on. Similarly, there are various types of number systems that have different properties, like the binary number system, the octal number system, the decimal number system, and the hexadecimal number system.
What are Number Systems?A number system is a system representing numbers. It is also called the system of numeration and it defines a set of values to represent a quantity. These numbers are used as digits and the most common ones are 0 and 1, that are used to represent binary numbers. Digits from 0 to 9 are used to represent other types of number systems.
Given number:
10584
So, the number multiplied by the third of itself
x* 2/3 = 10584
x= 10584* 3/2
x= 15876
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Given the function h of x equals 8 times the cube root of x minus 6 end root plus 16, what is the x-intercept of the function?
–6
–2
2
16
The x-intercept of the function [tex]h(x) = 8 * \sqrt[3]{x - 6} + 16[/tex] is -2
How to determine the x-intercept?The equation of the function is given as:
[tex]h(x) = 8 * \sqrt[3]{x - 6} + 16[/tex]
The x intercept is the x value when h(x) = 0
So, we have:
[tex]8 * \sqrt[3]{x - 6} + 16 = 0[/tex]
Subtract 16 from both sides
[tex]8 * \sqrt[3]{x - 6} = -16[/tex]
Divide both sides by 8
[tex]\sqrt[3]{x - 6} = -2[/tex]
Take the cube of both sides
x - 6 = -8
Add 6 to both sides
x = -2
Hence, the x-intercept of the function [tex]h(x) = 8 * \sqrt[3]{x - 6} + 16[/tex] is -2
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Help please!
Select the correct answer.
Please help quickly!!
The values of a, b and c from the given exponential function are 7, 9 and 4 respectively
Laws of indicesAccording to the exponential law of indices
[tex]\sqrt[c]{a^b}[/tex]
This can be written as;
[tex]\sqrt[c]{a^b}=a^{\frac{b}{c} }[/tex]
Given the exponential expression
[tex]7^\frac{9}{4}[/tex]
Compare with the original expression
a = 7, b = 9 and c = 4
Hence the values of a, b and c from the given exponential function are 7, 9 and 4 respectively
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SO CONFUSED PLEASE SOMEONE EXPLAIN! DUE SOON AND NEED HELP!!!!!!!! QUESTION IN PICTURE BELOW
Answer:
=> Apply law of cosine
[tex]c^2=a^2+b^2-2abcos\left(C\right)[/tex]
=> input value
[tex]z^2=6.5^2 + 9.4^2-\left(6.5\right)\left(9.4\right)\left(cos\left(131\right)\right)[/tex]
=> simplify
[tex]z=\sqrt{\left(6.5^2+\:9.4^2\right)-\left(6.5\right)\left(9.4\right)\left(-0.65605902899\right)}[/tex]
=> calulcation
[tex]z=\sqrt{-61.1\cos \left(131^{\circ \:}\right)+130.61},\:z=-\sqrt{-61.1\cos \left(131^{\circ \:}\right)+130.61}[/tex]
=> apply rule: Distance must be greater than 0
which is about 14.51828
in a class there are 8 students who play football and cricket, 4 students who do not play football or cricket,14 students who play football and 20 students who play cricket
find the probability that a student chosen at random plays football or cricket or both
The probability to that the student chosen plays football or cricket or both is;
What is the probability that the chosen student play at least one of football and cricket?To evaluate the required probability, one must determine the total number of students in the class as follows;
Total number of students = 4 + 8 + (14-8) + (20-8) = 30.
Hence, the required probability is; (30-4)/30 = 26/30 = 13/15.
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A tower that is 125 feet tall casts a shadow 173 feet long find the angle of elevation of the sun to the nearest degree
Applying the tangent ratio, the angle of elevation of the sun, to the nearest degree, is: 36°.
What is the Tangent Ratio?In a right triangle, tan ∅ = opposite length / adjacent length is the tangent ratio.
Given the following:
Angle of elevation = ∅ Opposite length = 125 ftAdjacent length = 172 ftApply the tangent ratio:
tan ∅ = 125/172
tan ∅ = 125/172
∅ = tan^(-1)(125/172)
∅ ≈ 36°
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A total of 388 tickets were sold for the school play they were either adult tickets or student tickets the number of student tickets sold was three times the number of adult tickets sold how many adult tickets were sold
Answer:
97
Step-by-step explanation:
Number of adult tickets = a.
Number of student tickets = s.
"A total of 388 tickets were sold"
a + s = 388
"the number of student tickets sold was three times the number of adult tickets sold"
s = 3a
a + s = 388
s = 3a
Substitute s in the first equation with 3a.
a + 3a = 388
4a = 388
a = 97
Answer: 97 tickets