All categories

3 years ago

Evaluate r(x) = -x -7 when x = -2, 0, and 5

Mathematics

1 answer:

kykrilka [37]3 years ago

5 0

Answer:

r(-2) = -5 , r(0) = -7 , r(5) = -12

Step-by-step explanation:

Plug in the numbers for x and then solve. : )

r(-2) = - (-2) - 7

r(-2) = 2 -7

r(-2) = -5

r(0)= -0 -7

r(0)=0-7

r(0) = -7

r(5) = -5 - 7

r(5) = -12

You might be interested in

Convert to cups.<br><br> 9 quarts

arsen [322]

36 cups ........................................

7 0

3 years ago

Solve the equation −96=3(8x)^(5/3).

vladimir2022 [97]

Answer:

x= - 1

Step-by-step explanation:

5 0

3 years ago

The circle with center O has a minor arc BSA with a length of

tangare [24]

Answer:

D. $\frac{27\pi}{2}$ inches.

Step-by-step explanation:

We have been given that the circle with center O has a minor arc BSA with a length of $3\pi^{2}$ inches. The central angle is 40°.

To find the circumference of circle we will use formula:

$\frac{\text{Central angle}}{2\pi}=\frac{\text{Arc length}}{2\pi r}$ , where $2\pi$ = measure of 360 degrees in radians and $2\pi r$ = circumference of circle.

Let us convert measure of central angle into radians.

$40^{o}=\frac{40*\pi}{180} =\frac{2\pi}{9}$

Upon substituting our given value in the formula we will get,

$\frac{\frac{2\pi}{9}}{2\pi}=\frac{\frac{3\pi}{2}}{2\pi r}$

$\frac{2\pi}{18\pi}=\frac{3\pi}{4\pi r}$

$\frac{1}{9}=\frac{3}{4r}$

Cross multiplying we will get,

$4r=27$

$r=\frac{27}{4}$

Hence, the radius of our circle is 27/4 inches.

Since the circumference of circle is $2\pi r$ . Upon substituting $r=\frac{27}{4}$ we will get,

$2\pi r=2\pi* \frac{27}{4}=\frac{27\pi}{2}$

Therefore, circumference of our given circle will be $\frac{27\pi}{2}$ inches and option D is the correct choice.

6 0

3 years ago

Kacey is making a bracelet that is 8 inches long. She uses 1 green bead at each end of the bracelet. She also uses 1 green bead

Effectus [21]

Answer:

The answer would be C. 5

Step-by-step explanation:

5 0

3 years ago

Find the distance from N to T. √29 √14 29 7

Lerok [7]

|dw:1375141940415:dw|
-------------------------------------------------------

the answer would be
----------------------------------------------
29^2
---------------------------------------
(dont forget the square root )

29²

6 0

3 years ago

Evaluate r(x) = -x -7 when x = -2, 0, and 5​

Evaluate r(x) = -x -7 when x = -2, 0, and 5