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alisha [4.7K]
3 years ago
15

Pleaseee help 6(3 - 7x) = -192

Mathematics
2 answers:
Sergio039 [100]3 years ago
4 0

Answer:

x=5

Step-by-step explanation:

6(3-7x)=-192

18-42x=-192

-18          -18

-42x= -210

x=5

scZoUnD [109]3 years ago
3 0

Answer:

x = 5

Step-by-step explanation:

6(3 - 7x) = -192

Divide each side by 6

6/6(3 - 7x) = -192/6

3 - 7x = -32

Subtract 3 from each side

3-7x-3 = -32-3

-7x = -35

Divide each side by -7

-7x/-7 = -35/-7

x = 5

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The average rate of change has a relationship with slopes. In this way, we can write the slope of a line as follows:


Slope=\frac{Change \ y}{Change \ x}


To find the Average Rate of Change (ARC), we need to compute the following:


ARC=\frac{s_{2}-s_{1}}{y_{2}-y_{1}}=slope \\ \\ where: \\ \\ s_{2}: Number \ of \ students \ in \ 2011 \\ s_{1}: Number \ of \ students \ in \ 2001 \\ \\ y_{2}: Year \ 2011 \\ y_{1}: Year \ 2001


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3 years ago
For which equation will f(-2)= -6?
Mila [183]

Answer:

C. f(x)=4x^3+6x^2-x

Step-by-step explanation:

Lets plug in -2 into each of these equation to see which one gives us the solution of -6

A. f(x)=x^3+x

f(-2)=(-2)^3+(-2)\\\\f(-2)=-8-2\\\\f(-2)=-10

B. f(x)=x^4-5x

f(-2)=(-2)^4-5(-2)\\\\f(-2)=16+10\\\\f(-2)=26

C. f(x)=4x^3+6x^2-x

f(-2)=4(-2)^3+6(-2)^2-(-2) \\\\f(-2)=4(-8)+6(4)+2\\\\f(-2)=-32+24+2\\\\f(-2)=-6

D. f(x)=-3x^3-4x^2+4x

f(-2)=-3(-2)^3-4(-2)^2+4(-2)\\\\f(-2)=-3(-8)-4(4)-8\\\\f(-2)=24-16-8\\\\f(-2)=0

As we can see, function C was the only one that gave us the value of -6, so that is our answer.

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Step-by-step explanation:

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