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jarptica [38.1K]
3 years ago
9

Find the average rate of change of f ( x ) = 7x^2 − 6 on the interval [ 3 , a ] . Your answer will be an expression involving a

Mathematics
1 answer:
slega [8]3 years ago
3 0

Answer:

\frac{7a^2-63}{a-3}

Step-by-step explanation:

So what is the average rate of change?  Basically, it's the slope.  In fact it's exactly the slope for a linear equation, but how do you find slope?

\frac{y_2-y_1}{x_2-x_1}

Sp we just plug the values in.  

x_1=3\\x_2=a\\y_1=7(3)^2-6=63-6=57\\y_2=7(a)^2-6

\frac{7a^2-6-57}{a-3}=\frac{7a^2-63}{a-3}

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8 is 1 tenth of what number
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80

Step-by-step explanation:

You can figure this out by creating an equation:

1/10 x=8        (This shows that 8 is 1/10 of number x)

x=80            (Solve the equation by multiplying by ten)  

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likoan [24]

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3 years ago
3 X 4 + 4 = ______Immersive Reader (5 Points)
son4ous [18]

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8 0
2 years ago
It’s only one question plz help (DON’T GUESS NO LINKS) please I will do anything there is a part two I’m struggling and this is
pshichka [43]

Answer:

For question 1 it's B

For question 2 it's C

Step-by-step explanation:

<u>For question 1, you have to apply the "Triangle Inequality Theorem"</u>

A+B > C

B+C > A

A+C > B

Let's say that A=22, B=17, C= 14

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2 years ago
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