Answer:
So first we substitute -2 for x
f(-2) = 10(-2)^2 - 4(-2) - 5
f(-2) = 400 + 8 - 5
f(-2) = 400 + 3
f(-2) = 403
Step-by-step explanation:
Select the correct answer from the drop-down menu.
Based on the construction shown, what conjecture can you make?
Line segment AB__ line segment CD.
Line segment AB is the same length as line segment CD.
What is a line segment?A line segment is defined as the part of a line that is divided in parts using two or more end points for easy observation.
From the given diagram, the line segment AB is the same as the line segment CD because the line segment CD was shifted a bit from the point of origin of line segment AB.
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graph the zeros of the polynomial function p(x)=(x-1)^2(x+3)(x-2)
Answer:
69
Step-by-step explanation:
420
what is the difference in length between 15 1/8 and 14 5/8
Answer:
4/8
Step-by-step explanation:
15 1/8 - 1/2(4/8) = 14 5/8
please help i’ll give brainliest
Answer:
3. 16.67
4. 25
Step-by-step explanation:
3. x+2÷8=14/6 (similar triangles have corresponding proportional sides)
x+2=(7×8)/3
x=56/3-6/3 (LCM)
x= 50/3
4. 27/72= (-4+4x)/64
3/2= (-1+x)/16
-1+x=24
x=24+1
Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options. The radius of the circle is 3 units. The center of the circle lies on the x-axis. The center of the circle lies on the y-axis. The standard form of the equation is (x – 1)² + y² = 3. The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
Completing the squares, the correct statements regarding the equation of the circle are given by:
The radius of the circle is 3 unitsThe center of the circle lies on the x-axis.The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.What is the equation of a circle?The equation of a circle of center [tex](x_0, y_0)[/tex] and radius r is given by:
[tex](x - x_0)^2 + (y - y_0)^2 = r^2[/tex]
In this problem, the equation is given by:
x² + y² - 2x - 8 = 0.
Completing the squares:
(x - 1)² + y² = 8 + 1²
(x - 1)² + y² = 9.
Hence the center is (1,0), the radius is 3, and the correct statements are:
The radius of the circle is 3 unitsThe center of the circle lies on the x-axis.The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.More can be learned about the equation of a circle at https://brainly.com/question/24307696
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The cylinder in a sphere have the same radius for the height of the cylinder is equal to the diameter of the spear select the expression that describes the volume of the cylinder that is not occupied by the sphere
The volume of the cylinder that is not occupied by the sphere is 2πr³/3
Since the object is a sphere in a cylinder, we need to know the volume of sphere and cylinder.
What is volume of a cylinder?The volume of a cylinder is given by V '= πr²h where
r = radius of cylinder and h = height of cylinder.Since the height of the cylinder equals the diameter of the sphere, h = 2r
So, V' = πr²h
V' = πr² × 2r
V' = 2πr³
What is volume of sphere?
The volume of a sphere of radius r is given by V = 4πr³/3
Volume of cylinder not occupied by sphere
The volume of the cylinder not occupied by the sphere is V" = V' - V
= 2πr³ - 4πr³/3
= (6πr³ - 4πr³)/3
= 2πr³/3
So, the volume of the cylinder that is not occupied by the sphere is 2πr³/3
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Sam borrowed $2,000,000 for a
period of four years. his interest
rate is 5%. how much interest will
sam pay in all?
helpp
The total amount Sam will pay in all will be $2,400,000
Simple interest
From the question, we are to determine the interest Sam pays in all
Using the simple interest formula,
I = PRT
From the given information,
P = $2,000,000
R = 5% = 0.05
T = 4
Putting the parameters into the formula,
I = $2000000 × 0.05 × 4
I = $400000
The interest Sam will pay is $400,000
The total amount Sam will pay in all will be $2,000,000 + $400,000
= $2,400,000
Hence, the total amount Sam will pay in all will be $2,400,000
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Answer:
Step-by-step explanation:400000
Let (-3, 5) be a point on the terminal side of 0.
Find the exact values of cos0, csc 0, and tan 0.
Answer:
[tex]\displaystyle \large{\cos \theta = \dfrac{-3}{\sqrt{34}} = -\dfrac{3\sqrt{34}}{34}}\\\\\displaystyle \large{\csc \theta = \dfrac{\sqrt{34}}{5}}\\\\\displaystyle \large{\tan \theta = -\dfrac{5}{3}}[/tex]
Step-by-step explanation:
Accorded to trigonometric formula, we know that:
[tex]\displaystyle \large{\cos \theta = \dfrac{x}{r}}\\\\\displaystyle \large{\csc \theta = \dfrac{1}{\sin \theta} = \dfrac{1}{\frac{y}{r}} = \dfrac{r}{y}}\\\\\displaystyle \large{\tan \theta = \dfrac{\sin \theta}{\cos \theta} = \dfrac{y}{x}}[/tex]
We know what x and y are but not yet knowing what r is. We can find r (radius) using the formula:
[tex]\displaystyle \large{r=\sqrt{x^2+y^2}}[/tex]
Input x = -3 and y = 5 in.
[tex]\displaystyle \large{r=\sqrt{(-3)^2+(5)^2}}\\\\\displaystyle \large{r=\sqrt{9+25}}\\\\\displaystyle \large{r=\sqrt{34}}[/tex]
Hence, radius is √34 and we know all we need now. Substitute x = -3, y = 5 and r = √34 in respective areas.
[tex]\displaystyle \large{\cos \theta = \dfrac{-3}{\sqrt{34}} = -\dfrac{3\sqrt{34}}{34}}\\\\\displaystyle \large{\csc \theta = \dfrac{\sqrt{34}}{5}}\\\\\displaystyle \large{\tan \theta = -\dfrac{5}{3}}[/tex]
These are the answers to your question. Please let me know if you have any questions regarding my answer or explanation!
area of number sense relates to the quantity of ingredients in recipes?
Measurement is the area of the number sense that has a relationship with the quantity of ingredients used in recipes.
How do you determine the measurements of recipes?The measures of recipes are determined by:
Weighing themCalculating their amount in volume etc.So measure recipes, one can either measure them using artefacts such as cups, spoons, or other kind of containers.
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solve pls i need answer asap
all 1-6
Step-by-step explanation:
the domain is the set or interval of all valid x values.
the range is the set or interval of all valid y values.
1.
domain = {-1, 2, 5}
range = {0, 2, 3, 7}
function : no, because x = -1 has 2 different y values assigned (7 and 2). that violates the definition of a function.
2.
domain = {-3, -2, -1, 1, 4}
range = {-5, -1, 0, 2}
function : yes. every x bake has exactly one y value assigned.
3.
domain = {4, 6, 7}
range = {-1, 2, 3, 5}
function : no, because x = 4 has 2 different y values assigned (2 and 5).
4.
domain = [-3, 3) "3" is not included, hence the empty dot
range = [-4, 5]
function : yes
5.
domain = (-infinity, +infinity) "infinity" is not a possible value, so the limits are not included.
range = [-1, 2]
function : yes
6.
domain = [-2, +infinity)
range = (-infinity, +infinity)
function : no. except for x = -2 all x values have 2 different y values assigned.
$560 is divided into two parts in the ratio 3:4. What is the larger amount?
Answer:
$320
Step-by-step explanation:
1. 3x + 4x = 560 (since they are ratios, x would be the same amount)
2. 7x = 560
3. x = 80
This means that 3 and 4 should be multiplied by 80 to get the $ amount. The amounts are $240 (3*80) and $320 (4*80).
So, the larger amount if $320.
Please provide a step by step.
Answer:
5. m<STP = 134
6. m<PTS = 158
Step-by-step explanation:
5. Since ray TR bisects <PTS, angles PTR and STR are congruent.
m<PTR = m<STR
3x - 8 = 2x + 17
Subtract 2x from both sides.
x - 8 = 17
Add 8 to both sides.
x = 25
m<STP = 2m<PTR
m<STP = 2(3x - 8)
m<STP = 2(3 × 25 - 8)
m<STP = 2(67)
m<STP = 134
6.
2m<PTR = m<PTS
2(x - 23) = x + 56
2x - 46 = x + 56
x = 102
m<PTS = x + 56
m<PTS = 102 + 56
m<PTS = 158
Five friends worked as sales clerks at a local shopping mall during the summer. This table shows how much each person earned during the summer. Which measure of central tendency is most affected by Renee’s salary? A. the median only B. the mean only C. the mode only D. the mean and the median
Answer:
The Median
Step-by-step explanation:
i did the quiz
Answer:
A. the median only
Step-by-step explanation:
What is 1 2/3 multiple 2/3
Answer:
[tex]1\frac{1}{9}[/tex]
Step-by-step explanation:
Given the following question:
[tex]1\frac{2}{3} \times\frac{2}{3}[/tex]
In order to multiply the two, we have to convert the mixed number into a improper fraction and then multiply the numerator by the numerator, the denominator by the denominator.
[tex]1\frac{2}{3} =3\times1=3+2=\frac{5}{3}[/tex]
[tex]\frac{5}{3} \times\frac{2}{3}[/tex]
[tex]5\times2=10[/tex]
[tex]3\times3=9[/tex]
[tex]=\frac{10}{9}[/tex]
Convert the improper fraction into a mixed number:
[tex]\frac{10}{9}[/tex]
[tex]\frac{10}{9} =10\div9=1\frac{1}{9}[/tex]
[tex]=1\frac{1}{9}[/tex]
Your answer is "1 1/9."
Hope this helps.
Tracy has a long weekend coming up, and she wants to spend all 3 days camping at Moose Hill Forest. She
checked the weather and found that there is a 25% chance of rain each day. How likely is it that the weather will
stay dry the entire time?
Answer:
a 75% chance the weather will stay dry
Step-by-step explanation:
3/4
12e < -96
Solving one step inequalities
(Please help! I need an actual answer not if it’s true or false / unidentified)
A bakery sold a total of 300 cupcakes in a day, and 57 of them were mocha flavored. What percentage of cupcakes sold that day were mocha flavored?
The radius of a spherical balloon a is increasing at a constant rate of 0.1 cm/s. another balloon, b, is being continuously deflated in such a way that the total volume of a and b remains constant. suppose that at the beginning the radius of a is 10 cm and that of b is 9 cm. find the rate of change of the radius of b when the radius of a is 12 cm
Let [tex]r_A[/tex] and [tex]r_B[/tex] be the respective radii of balloons A and B. If the fixed total volume is V, then
[tex]V = \dfrac{4\pi}3\left({r_A}^3 + {r_B}^3\right)[/tex]
and knowing [tex]r_A=10\,\rm cm[/tex] and [tex]r_B=9\,\rm cm[/tex] at the start, we have V = 6916π/3 cm³. Then when [tex]r_A=12\,\rm cm[/tex], the radius of the other sphere is [tex]r_B=1\,\rm cm[/tex].
Differentiating both sides with respect to time t gives a relation between the rates of change of the radii:
[tex]0 = 4\pi \left({r_A}^2 \dfrac{dr_A}{dt} + {r_B}^2 \dfrac{dr_B}{dt}\right) \implies \dfrac{dr_B}{dt} = -\left(\dfrac{r_A}{r_B}\right)^2 \dfrac{dr_A}{dt}[/tex]
We're given [tex]\frac{dr_A}{dt} = 0.1\frac{\rm cm}{\rm s}[/tex] the whole time. At the moment [tex]r_A=12\,\rm cm[/tex], the radius of balloon B is changing at a rate of
[tex]\dfrac{dr_B}{dt} = -\left(\dfrac{12\,\rm cm}{1\,\rm cm}\right)^2 \left(0.1\dfrac{\rm cm}{\rm s}\right) = \boxed{-14.4 \dfrac{\rm cm}{\rm s}}[/tex]
At Giant you can get 3 cases of water for $12.99. At Shoprite you can get 4 cases of water for $12.00. Which store is the best place to shop for water?
Answer:
Shoprite
Step-by-step explanation:
At giant each case of water is 4.33 You can figure this out by dividing the overall cost of 12.99 by 3 and that gives you the cost of one case of water. At Shoprite you get 4 cases for 12.00 again you divide the overall cost of 12.00 by 4 and that gives you 3.00 so you get a better deal at shoprite there fore shoprite is the better place to shop for water
rainbow's is having a discount on swimsuits for the start of summer. the original price of the swimsuit is $30 and it is marked as 25% off. what is the
sale price that the customer will pay?
Answer:
22.50
Step-by-step explanation:
25 percent 30
= (25/100)30
= (25*30)/100
= 750/100 = 7.50
$30 - $7.50 = $22.50
A jewelry store has 88 rings to display they arrange the rings in a even rose how many rings are in each row
Answer:
2,4,8,11,22, or 44
Step-by-step explanation:
To figure out how many rings would be in each full row with no leftovers, we need to find all the factors of 88 (outside of 1 and 8) which are 2,4,8,11,22, and 44. Since the question does not give any more information on how big the rows need to be, I can't narrow this down any further, however if I had to choose I would say rows of 8 by 11 would be the best.
Hope this helps! :)
please helppppp i really need this.
1930 to the nearest 1000
Answer:
2000.
Step-by-step explanation:
The hundreds digit is 9 so we round up the 1 so the answer is 2000.
Two airplanes leave Chicago at the same time and fly in opposite directions. If one travels at 450 miles per hour and the other at 550 miles per hour, how long will it take for them to be 4000 miles apart
450t+550t=4,000
1000t=4000
t=4000/1000
t=4 hours they will be 4,000 apart.
------------------------------------------
20t+12(4.5-t)=70
20t+54-12t=70
8t=70-54
8t=16
t=16/8
t=2 hours at 20 mph.
proof
20*2+12(4.5-2)=70
40+12(2.5)=70
40+30=70
70=70
Make sure your answer is in
degrees. You should be able to
find this without a calculator.
sin-¹ (sin 17°) = [ ? ]°
The value of sin⁻¹ (sin 17°) is 17° or 17 degree after applying the trigonometric identity sin⁻¹ (sinx) = x
What is trigonometry?Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.
We have:
= sin⁻¹ (sin 17°)
The above expression represents an angle.
Let's suppose the angle is x and sin of x is sinx
sinx is a ratio of side opposite to the angle to hypotenuse.
If we take sin inverse of sinx we get an angle of x.
sin⁻¹ (sinx) = x
sin⁻¹ (sin 17°) = 17 degree
Thus, the value of sin⁻¹ (sin 17°) is 17° or 17 degree after applying the trigonometric identity sin⁻¹ (sinx) = x
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Consider the equation 7*e^0.1t=47 solve the equation for t. epress the solution as a logarithm in base-e
An equation is formed of two equal expressions. The equation 7*e^0.1t=47 can be expressed as t=[ln (47/7)]/0.1.
What is an equation?An equation is formed when two equal expressions are equated together with the help of an equal sign '='.
The equation 7*e^0.1t=47 in terms of logarithm in terms of base-e can be solved as,
[tex]7e^{0.1t}=47\\\\e^{0.1t}=\dfrac{47}{7}\\\\0.1 t = {\rm ln}(\dfrac{47}{7})\\\\t = \dfrac{ {\rm ln}(\frac{47}{7})}{0.1}[/tex]
Hence, the equation 7*e^0.1t=47 can be expressed as t=[ln (47/7)]/0.1.
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I forgot how do do these anyone remember please
Answer:
x ≤ 1/2
Step-by-step explanation:
Domain: input values (x-values)
We cannot take a square root of a negative number, therefore
3 - 6x ≥ 0
Solving the inequality:
⇒ 3 - 6x ≥ 0
⇒ 3 ≥ 6x
⇒ 1/2 ≥ x
⇒ x ≤ 1/2
Therefore, the domain is x ≤ 1/2
•function notation•
does anyone know how to do this. please help.
f(3) = 16
Step-by-step explanation:Function notation is used to express a rule in terms of x and f(x), where x is independent and f(x) is dependent.
Pronunciation of Function Notation
To use function notation it is important to know how to express the function in words.
The function "f(x) = 3x + 7" would be pronounced "F of X equals three X plus 7."
So, the function is "F of" whatever variable or value is within the parentheses.
Use of Function Notation
The function y=x is similar to the function f(x)=x. As a matter of fact, when graphed they both work the same way, but the function notation seen in the question allows us to see the value of x.
This is because the value in the parentheses is the value of x. So, in this situation, the question asks what is the value of the function when x equals 3.
Solving for f(3)
To solve this function, all we have to do is plug 3 in for x and evaluate.
f(3) = 3(3) + 7First, multiple 3*3
f(3) = 9 + 7Next, add 7
f(3) = 16Question 3 of 5
Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.
Match each person to the contribution they made to the field of geometry.
Leonhard Euler
Maryam Mirzakhani
Rene Descartes
illustrated geometry of iterations
proof of complex functions
developed geometry of curved surfaces
Benoit Mandelbrot
The Correct match up is:
Leonhard Euler - developed geometry of curved surfacesWho made proof of complex functions?The first proof of complex numbers was done by an Italian mathematicians known to be Girolamo Cardano and Raphael Bombelli.
The person who illustrated geometry of iterations is Gaston Maurice Julia.
Benoit Mandelbrot is known to have discover fractal geometry. Rene Descartes is known to be famous for making a connection between geometry and algebra.
Therefore, from the above, you can see that the only correct matchup is Leonhard Euler - developed geometry of curved surfaces
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Answer :
proof of complex functions --- > Maryam Mirzakhani
illustrated geometry of iterations --- > Benoit Mandelbrot
developed geometry of curved surfaces --- > Leonhard Euler
In the 15th century, Rene Descartes developed the field of analytical geometry by using functions to describe lines and curves in a coordinate plane. In the 18th century, Leonhard Euler extended geometric analysis to curved surfaces. in the late 20th century, Benoit Mandelbrot used computers to illustrate the geometry of iterations (fractals). In 2014, Maryam Mirzakhani received the Fields Medal for her work on geometric proofs involving complex functions.
The diagram shows a convex polygon.
What is the sum of the interior angle measures of this polygon?
This is an equilateral triangle, therefore, all the angles are 60 degrees.
3 times 60 is 180.
180 is the answer