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Natasha_Volkova [10]
2 years ago
6

Which equations are true?

Mathematics
2 answers:
nadya68 [22]2 years ago
8 0

Answer:

B is correct

Step-by-step explanation:

-(-x) = x, because a double negative like this equals a positive.

Therefore, you are actually saying -x+x= 0 which is true.

dedylja [7]2 years ago
6 0

Answer:

A and B

Step-by-step explanation:

A) Collect like terms

0=0

B) Collect like terms

0=0

A and B both correct

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Two boys earn money mowing lawns. Jacob mowed 12 lawns this week. He mowed
iris [78.8K]
B is correct
12/3=4
-> 3 x 4 = 12
6 0
2 years ago
Read 2 more answers
H(x) = {(3,-5), (5.-7), (6,-9), (10, -12), (12,1-16)}<br> Which of the following gives h^-1(x)
Lemur [1.5K]

Answer:

its b

Step-by-step explanation:

because each pair is inversed

7 0
3 years ago
With work please!!!<br><br> f(x) = -x^4 + 5x - 4x^2<br><br> (f (2))^2
marishachu [46]

Answer: 484

===============================================

Work Shown:

First let's compute f(2). We replace every x with 2 and then use PEMDAS to simplify

f(x) = -x^4 + 5x - 4x^2

f(2) = -(2)^4 + 5(2) - 4(2)^2

f(2) = -16 + 5(2) - 4(4)

f(2) = -16 + 10 - 16

f(2) = -6 - 16

f(2) = -22

Then we square this result to find the value of [ f(2) ]^2

f(2) = -22\\\\\left[ f(2) \right]^2 = [ -22 ]^2\\\\\left[ f(2) \right]^2 = 484

6 0
3 years ago
CAN SOMEONE HELP ME I HAVE A BIG TEST BUT I SUCK AT MATH
allsm [11]

Answer:

y = 8

Step-by-step explanation:

if you do -2 + -2 and add ten to it you get 8

5 0
3 years ago
The equation V equals pi r squared h, where r represents radius and h represents height, is used to find the volume of a _______
baherus [9]

Answer:

Volume of a cylinder.

Step-by-step explanation:

The given equation is :

V=\pi r^2 h

Where

r is the radius

h is the height

This equation is used to find the volume of a cylinder.

For example, a cylinder having radius of 7 units and height of 10 units, its volume will be :

V=\dfrac{22}{7}\times 7^2\times 10\\\\V=1540\ \text{unit}^2

So, the given equation is used to find the volume of a cylinder.

7 0
3 years ago
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