Evaluate the function

Evaluate The Function

Answers

Answer 1
You can put 10 in the equation:
-10^2 -3*10 = -100 -30 = -130
Answer 2

Answer:

[tex] \boxed{f(10) \: is \: 70}[/tex]

Step-by-step explanation:

[tex]f(x) = { - x}^{2} - 3x[/tex]

:' Question

Find f(10) ?

:' Solution

[tex]f(x) = { - x}^{2} - 3x[/tex]

Substitute x = 10

[tex]f(10) = { (- 10})^{2} - 3(10)[/tex]

[tex]f(10) = 100 - 30[/tex]

[tex]f(10) = 70[/tex]

__________________________


Related Questions

Find the equation (in terms of x ) of the line through the points (-4,-4) and (2,4)

Answers

Answer:

[tex]y=\frac{4}{3}x+\frac{4}{3}[/tex]

Step-by-step explanation:

Let [tex](x_1,y_1)\rightarrow(-4,-4)[/tex] and [tex](x_2,y_2)\rightarow(2,4)[/tex]:

Determine slope

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\ \\m=\frac{4-(-4)}{2-(-4)}\\ \\m=\frac{4+4}{2+4}\\ \\m=\frac{8}{6}\\ \\m=\frac{4}{3}[/tex]

Use either coordinate point to find "b", the y-intercept

[tex]y=mx+b\\\\4=\frac{4}{3}(2)+b\\ \\4=\frac{8}{3}+b\\ \\\frac{4}{3}=b[/tex]

Final Equation

[tex]y=\frac{4}{3}x+\frac{4}{3}[/tex]

ASAP 50 POINTS! Please help with this, it's about angle bisectors.

Answers

Step-by-step explanation:

let's name the 2 sides of the bisected angle a and b.

and the 2 segments (created by the bisector) of the opposite side x and y.

then we have

a/b = x/y

question 1

14/21 = x/15

1/3 = x/15

15/3 = x = 5

question 2

8/y = 4/6

8×6 = 4y

48 = 4y

y = 12

question 3

3/4.5 = z/1.5

3×1.5 = 4.5z

4.5 = 4.5z

z = 1

question 4

16.5/p = 11/(29-11) = 11/18

16.5×18 = 11p

297 = 11p

p = 27

question 5

7/13 = (15-x)/x

7x = 13×(15-x) = 195 - 13x

20x = 195

x = 195/20 = 39/4 = 9.75

The heart rate of 10 football players is sampled. The rates, measured in beats per minute, are

62, 74, 74, 64, 76, 64, 80, 76, 68, 76

What is the best estimate of the population mean for heart rate among football players?



Enter your answer in the box.

beats/min

PLEASE ANSWER ASAP

Answers

Answer:

I know that I saw that on social

Answer:

71.4

Step-by-step explanation:

add all together and divide by the number of players.

There are 11 rainbows that total 1,011 miles in total. What is the mean length of the rainbows?

Answers

It can be seen that the value of the mean computed will be 91.9 miles.

How to calculate the mean

A mean simply means the average of a set of numbers. In this case, there are 11 rainbows and thete are total of 1,011 miles.

Therefore, the mean of the numbers will be:

= 1011/11

= 91.9 miles.

In conclusion, the correct option is 91.9 miles.

Learn more about mean on:

https://brainly.com/question/1136789

Write a quadratic function f whose zeros are -12 and 1.

Answers

got this u would have to do -12 and the equation would be -12 w: one which they would equal to x+25612- -13

I add 12 to a certain number and then double the result. The answer is 42. Find the original number​

Answers

(X+12)*2=42
2x+24=42
2x=42-24
2x=19 divided by two
X=9.5

The bottom of ladder must be placed 3 feet from wall.The ladder is 10 feet long. How far above the ground does the ladder touch the wall?

Answers

Answer:

9.54ft

Step-by-step explanation:

This problem uses pythagoras theorem as the ladder and the wall make a triangle.

A

B                    C

Points A, B and C represent this problem. BC is 3ft, AC is 10ft and AB is x, now we sub this information into pythagoras theorem formula

3^2+b^2=10^2

Rearranged this is,

b^2=10^2-3^2

b^2=91

b=[tex]\sqrt{91}[/tex]

b=9.54

The above is rounded to two decimal places

The function y = f (x) is linear.
Given f-¹ (0) = 3 and f (1) = - 4, find the formula of
f (x) and f-¹ (x)​

Answers

Answer:

[tex]f(x)=2x-6[/tex]

[tex]f^{-1}(x)=\dfrac{x+6}{2}[/tex]

Step-by-step explanation:

Using slope-intercept form of linear function:  [tex]y = mx + b[/tex]

[tex]\implies f(x)=mx+b[/tex]

[tex]\textsf{if} \ \ f(1) = -4[/tex]

[tex]\implies m + b=-4[/tex]

[tex]\implies b = -4-m[/tex]

Find inverse of slope-intercept form:

swap x and y:  [tex]x = my + b[/tex]

Make y the subject:

[tex]\implies x - b = my[/tex]

[tex]\implies y = \dfrac{x-b}{m}[/tex]

[tex]\implies f^{-1}(x) = \dfrac{x-b}{m}[/tex]

[tex]\textsf{if} \ \ f^{-1}(0) = 3[/tex]

[tex]\implies \dfrac{0-b}{m}=3[/tex]

[tex]\implies b=-3m[/tex]

[tex]\textsf{equation 1:} \ \ b = -4-m[/tex]

[tex]\textsf{equation 2:} \ \ b=-3m[/tex]

Equate the equations and solve for [tex]m[/tex]:

[tex]\implies b=b[/tex]

[tex]\implies -4-m=-3m[/tex]

[tex]\implies -4=-2m[/tex]

[tex]\implies m=2[/tex]

Substitute found value for [tex]m[/tex] into one of the equations and solve for [tex]b[/tex]:

[tex]b = -4-2=-6[/tex]

Substitute found values of [tex]m[/tex] and [tex]b[/tex] into equations for [tex]f(x)[/tex] and [tex]f^{-1}(x)[/tex]:

[tex]f(x)=2x-6[/tex]

[tex]f^{-1}(x)=\dfrac{x+6}{2}[/tex]

What is the percent of change from 55 to 22?

Answers

Answer:

40 percent

Step-by-step explanation:

22/55 = 0.4

0.4 = 40%

check answer: 55 x 0.4 = 22

write an equation with infinite solutions using use atleast two operations

Answers

Answer:

[tex]a + b = a + b[/tex]

Step-by-step explanation:

plugging in a and b for anything will work, thus resulting in infinite amount of solutions

Two positive integers differ by 9. If the squares of the integers are added, the result is 125. Find
the two integers.

Answers

Answer:

x - y =9

x^2 + y^2 = 125

2^2 + 11^2 = 125

11-2 = 9

Thus, the two numbers are 2 & 11.

Hope this helps!

A 14 ounce energy drink contains 10 1/2 teaspoons of sugar.How much sugar is in one ounce of the drink?
A.3/4 teaspoon
B.1 1/3 teaspoons
C.1 1/2 teaspoons
D.3 1/2 teaspoons

Answers

The answer is B. 1 1/3 teaspoons.
I think is D not sure though

PLEASE HELP NO LINKS, MAY PIN FILES, OR TYPE BOX THANK YOU FOR ANSWER​

Answers

Answer:

1. Paul has mixed up the translation of the ordered pair.

New location: (1, 5)

2. Option C :  E = (3, 2)  F = (8, 4)  G = (5, 7)

Step-by-step explanation:

An ordered pair is a pair of numbers, (x,y) , written in a particular order.

It is often used to represent a point on a coordinate plane.

1.  From inspection of the diagram, the market is located at (3, 8)

Paul's mistake is that he has mixed up the translation of the ordered pair.  He has moved the market 3 to the left and 2 units down instead of the required 2 to the left and 3 units down.

The correct ordered pair for the new location of the market is (1, 5)

2. For each coordinate point (x, y), the first number is the x-coordinate (along the x-axis) and the second number is the y-coordinate (along the y-axis).  

E = (3, 2)

F = (8, 4)

G = (5, 7)

24 liters of water is pumped in 20 seconds

How long will it take to pump 84 liters?



pls help​

Answers

Answer:

70 s

Step-by-step explanation:

24 L = 20s

84 L = 20×84/ 24

= 70 s

The equation for the area of a circle is given.

A=πr2

If the radius (r) of the circle is 3, what is the area in terms of π?



3π2

9π2

Answers

[tex]A=\pi r^2; r=3 =>\\\\A=\pi \times3^2\\A=9\pi[/tex]

Answer: [tex]9\pi[/tex]

A pan balance has 3cubes on one pan and 11 cubes on the other pan. Lucy thinks she should add 7,8,9 or 10 cubes to make the pans balance how can you use the equation 3+c=11 to find the number of cubes lucy should add

Answers

Answer:

c = 8

Step-by-step explanation:

Solve for C

3 + c = 11.    subtract 3 from both sides

c = 8

Answer:

8

Step-by-step explanation:

3+c = 11

c = 11-3

c=8


What is the exact volume of a cone with a radius of 10 and a height of 6?

Answers

Answer:

Step-by-step explanation:

r = 10

h = 6

[tex]Volume =\dfrac{1}{3}\pi r^{2}h\\\\\\ =\dfrac{1}{3}*3.14*10*10*6\\\\=3.14 * 10 * 10 * 2\\\\= 628 \ cubic units[/tex]

Use IF functions to calculate the regular pay and overtime pay based on a regular 40-hour workweek in cells E5 and F5. Pay overtime only for overtime hours. In cell G5, calculate the gross pay based on the regular and overtime pay. Abram’s regular pay is $398. With 8 overtime hours, Abram’s overtime pay is $119.40.

Answers

Excel formulas are expressions used to perform computation.

The Excel formula to enter in cell E5 is =IF(D5<$B$21,D5,$B$21) * C5The Excel formula to enter in cell E5 is =IF(D5>$B$21,(D5-$B$21) * C5 * $B$22, 0)The regular pay

From the complete question, cell B21 represents base work hour

So, we start by checking if the work hour in cell D5 is less than the base work hour in cell B21

If yes, the work hour remains D5; otherwise the work hour is cell B21

The work hour is then multiplied by the rate in cell C5

Hence, the Excel formula to enter in cell E5 is =IF(D5<$B$21,D5,$B$21) *

The overtime pay

Here, we start by checking if the work hour in cell D5 is greater than the base work hour in cell B21

If yes, the overtime hour the difference between D5 and B21; otherwise the overtime hour and pay is 0

The over time hour if there is, is then multiplied by the rates in cells C5 and B22

Hence, the Excel formula to enter in cell E5 is =IF(D5>$B$21,(D5-$B$21) * C5 * $B$22, 0)

Read more about Excel formulas at:

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uld
23. Two sides of a triangle measure 14
inches and 8 inches. Which of the
following cannot be the length of the
remaining side?
A. 21 inches
B. 14 inches
C. 8 inches
D
6 inches

Answers

Answer:

21 can not the 3rd side

Step-by-step explanation:

because the sum of 2 sides of triangle are always greater -it is a fact or theorem

Write and equation in slope intercept form of the line that has a slope of -6 and passes through the point (3,-4).

Answers

Hi! I will help you with a smile!

First of all, we have the slope of the line and a point that it passes through.

Let’s write the line’s equation in Point-Slope Form:

y-y1=m(x-x1)

Where

y1 is the y-coordinate of the point, m is the slope of the line, and x1 is the x-coordinate.

In this case, y1=-4, m=-6, and x1=3

Solve:

y-(-4)=-6(x-3)

y+4=-6x+18

y=-6x+18-4

y=-6x+14 (Answer)

Hope it helps.

Do comment if you have any query regarding my answer.

Answered by

PeacefulNature :-)

Answer:

y = -6x+14

Step-by-step explanation:

m = -6 ,given as x an y (3,-4)

solution y-y1 = m(x-x1)

y-(-4) = -6(x-3)

y+4 = -6x+18

then y = -6x+18-4

y = -6x+14


A computer repair shop charges a $25 fee in
addition to $40 per hour to service a computer.
Write an equation to represent the total cost to
service a computer. Identify your variables.

a) What is the rate of change
b) What is the initial value
c) What is the independent variable
d) What is the dependent variable

Answers

Answer:

F=40h+25

a) 40 per hour

b) 25

c) hours

d) how much it costs

An executive for the movie production company wants to create a function that models this data. . Create a function that can be used to model the data shown in the table . Be sure to define the variables and provide justification for your choice of function . Discuss any possible domain restrictions which should be placed on your model . Use your model to estimate the box office gross the company should expect in week 10 .

Answers

Functions can be modeled by equations, tables and graphs

The equation that models the function is [tex]y = \frac 14x +1[/tex]The domain of the function is the set of whole numbersThe company should expect 4 box office gross in week 10

How to determine the function

From the question, we have the following ordered pairs

(x,y) = (0,1) and (4,2)

The function is a linear function.

So, we start by calculating the slope (m) using:

[tex]m = \frac{y_2 - y_1}{x_2 -x_1}[/tex]

Substitute known values

[tex]m = \frac{2 - 1}{4 - 0}[/tex]

[tex]m = \frac{1}{4}[/tex]

The equation is then calculated as:

[tex]y = m(x -x_1) +y_1[/tex]

This gives

[tex]y = \frac 14(x -0) +1[/tex]

[tex]y = \frac 14x +1[/tex]

The domain of the above function is the set of whole numbers

Substitute 10 for x, to calculate the number of box office gross for week 10

[tex]y = \frac 14 * 10 +1[/tex]

[tex]y = 3.5[/tex]

Approximate

[tex]y = 4[/tex]

Hence, the company should expect 4 box office gross in week 10

Read more about linear functions at:

https://brainly.com/question/15602982

Use the bar diagram to write an equation. Then solve for x.

Answers

Post the question and diagram

Answer:

we need to know the question

Step-by-step explanation:

width is 4 cm hight 8 cm how much square

Answers

Answer: The square is 32

Step-by-step explanation:

In - order to find the size of the square you must do width times height . . .

What is 4 x 8 ? 32

what is 1 2/10 divided by 1 4/10

Answers

Answer:

The answer is 6/7

Step-by-step explanation:

Answer:
The answer is 6/7

The figure is made up of 2 rectangles and 2 right triangles
What is the area of this figure
132 units^2
156 units^2
168 units^2
216 units^2

Answers

Answer:

total area = 132 units²

Step-by-step explanation:

Area of a rectangle = width x heightArea of a triangle = 1/2 x base x height

Area of largest rectangle = 4 x 15 = 60 units²

Area of smallest rectangle = 4 x 6 = 24 units²

Area of largest triangle = 1/2 x (15 - 6) x (4 + 4) = 36 units²

Area of smallest triangle = 1/2 x 6 x 4 = 12 units²

Total area of the figure = sum of areas of 2 rectangles and 2 triangles

⇒ area = 60 + 24 + 36 + 12 = 132 units²

math question helppp

Answers

Answer:

1st row = 10 = y

2nd row = 12 = y

3rd row = 18 = y

4th row = 22 = y

Step-by-step explanation:

Given:

y = 4x + 6

since the y-intercept is 6, we know that when the input value(x) is equal to 0, the output value(y) is equal to 6.

so now we plug in the equation for each row,

starting with the first one.

in the first row it says x is equal to 1 so the equation would look like this:

y = 4(1) + 6

simplified the equation to get

y = 4 + 6  = 10

meaning for the first row, y = 10!

since the x value is constant, and only goes up by 1 each row, this means we can just add 4 more each time.

However, I am going to write the equation for each row anyways.

Second row:

y = 4(2) + 6

simplifys into

y = 8 + 6   =  12

y = 12

Third row:

y = 4(3) + 6

simplifys into

y = 12 + 6 = 18

y = 18

Fourth row:

y = 4(4) + 6

simplifys into

y = 16 + 6 = 22

y = 22

So to recap, the answers to each row are...

1st row = 10 = y

2nd row = 12 = y

3rd row = 18 = y

4th row = 22 = y

I hoped this helped and have a good day :D!!!

Which equation represents the rectangular form of r= 8?

Answers

Answer:

B

Step-by-step explanation:

put both sides under square root.

x^2 + y^2 = 64

sqrt ( x^2 + y^2 ) = sqrt(64)

x + y = 8

r = 8.

[tex]\underline{r^2=x^2+y^2} \\\\\\ x^2+y^2=64\implies r^2=64\implies r=\sqrt{64}\implies r=8[/tex]

At a grocery store, tasting cups are used to let customers try a
new brand of chicken stock. An ounce of chicken stock can be filled up by 5 tasting
cups. Each carton of chicken stock is 16 oz. if 5,630 customers tried the chicken stocks in
one day, they drank about ____ cartons of chicken stock.

A. 70
B. 110
C. 350

Answers

The answer is the most easier answers is 70

How can the area of this triangle be determined by forming a rectangle? Select from the drop-down menus to correctly complete the statements. Copy and rotate the triangle and place it next to the existing triangle to form a rectangle. The length of the rectangle is Choose. Units. The width of the rectangle is Choose. Units. The area of the rectangle is Choose. Square units. The area of the triangle is half the area of the rectangle, so the area of the triangle is Choose. Square units.

Answers

The area of the triangle can be found by copying the triangle and putting the bases together such that it forms the diagonals of the triangle.

What is the area of the triangle?

The area of the triangle is half the product of the height of the triangle and the base of the triangle.

As we know that the area of a rectangle is double the area of a triangle,

therefore, in order to calculate the area of a triangle we need to convert it to a rectangle and then divide the area of the rectangle by 2.

Also, we know that the diagonal of a rectangle divides it into two equal triangles, therefore, we will put the triangle along the diagonal of the base.

Thus, to find the area of the triangle we will copy the triangle and put the base of the together such that it forms the diagonals of the triangle.

Since the triangles are put on each other along the base, therefore, the height(h) of the triangle will be the length of the rectangle, and the breadth of the triangle will be equal to the base of the triangle(b).

Learn more about Area of Triangle:

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Ai need help please 43

Step-by-step explanation:

please just need help

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