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3 years ago

9. Let f(x) = 4x + 7 and g(x) = 3x - 5. Find.(g×f)(-4) Pick one

Mathematics

1 answer:

gladu [14]3 years ago

5 0

Answer:

-32

Step-by-step explanation:plug f(x) equation in the x in the g equation so you have 3(4x+7)-5

then distribute the 3 and you end up with 12x+21-5

combine like terms

12x+16

plug in negative four and solve

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Evaluate m + n2 if we know m = 2 and n = –2.

Inessa05 [86]

<span> m + n^2
= 2 + (-2)^2
= 2 + 4
= 6

answer is 6</span>

8 0

3 years ago

Test the divisibility of the following :<br>57624 is divisible by 6 ? If It is then explain. <br>

Alisiya [41]

Answer:

yes

Step-by-step explanation:

$57624 \div 6 = 9607$

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3 years ago

Read 2 more answers

7/8 yard of material is needed to make a blanket, how many blankets can be made from 21 yards of material?

dmitriy555 [2]

Answer:

Step-by-step explanation:

the question translates to asking how many times does 7/8 fit in 21, so 21 divided by 7/8.

when we divide by a fraction, we can multiply by it's inverse, so 21 divided by 7/8, is 21 multiplied by 8/7. so:

21×8/7 = (21×8)/7 = (21/7)×8 = 3×8 = 24

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2 years ago

Look at the following graph of the given equation. Determine whether the equation is a function. Explain why or why not.

Vadim26 [7]

The equation $y=2x+2$ is a function

Explanation:

Given that the graph contains the coordinates $(-1,0)$ , $(0,2)$ , $(1,4)$ and $(2,6)$

We need to determine whether the equation $y=2x+2$ is a function.

To determine the equation is a function, let us substitute the coordinates in the equation and check whether it satisfies the equation.

Let us substitute the coordinate $(-1,0)$ in the equation $y=2x+2$

Thus, we have,

$0=2(-1)+2$

$0=-2+2$

$0=0$

Thus, the coordinate $(-1,0)$ satisfies the equation $y=2x+2$

Substituting the coordinate $(0,2)$ in the equation, we have,

$2=2(0)+2$

$2=2$

Thus, the coordinate $(0,2)$ satisfies the equation $y=2x+2$

Substituting the coordinate $(1,4)$ in the equation $y=2x+2$

$4=2(1)+2$

$4=4$

Thus, the coordinate $(1,4)$ satisfies the equation $y=2x+2$

Substituting the coordinate $(2,6)$ in the equation, we get,

$6=2(2)+2$

$6=6$

Thus, the coordinate $(2,6)$ satisfies the equation $y=2x+2$

Hence, the coordinates $(-1,0)$ , $(0,2)$ , $(1,4)$ and $(2,6)$ satisfies the equation $y=2x+2$

Thus, the equation $y=2x+2$ is a function.

6 0

3 years ago

Explain how you can find the amount of money Juan save if he earned $12 walking dogs

Lisa [10]

You can find how many he gets for each dog.

For example, let's pretend Juan gets $3 for each dog to walk, then he would've walked 4 dogs. But in this real problem we don't know how much he gets for each dog.

So, you can find the amount of money Juan saved by knowing how much is for each dog walked.

6 0

3 years ago