3 years ago

HELPPP ME PLSSSS!!!!!!!!!!!!!!!!!!!!!!!1 I BEGGGG

Mathematics

1 answer:

NeX [460]3 years ago

5 0

The answer is A Ezra is right

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F(x)=x 3−9xf, left parenthesis, x, right parenthesis, equals, x, cubed, minus, 9, x What is the average rate of change of f over

mel-nik [20]

Answer:

$A(x) = 243$

Step-by-step explanation:

Given

$f(x) = x^3 - 9x$

$Interval: (12,6)$

Required

Determine the average rate of change

Average rate is calculated as thus;

$A(x) = \frac{f(b) - f(a)}{b - a}$

Calculating f(12)

$f(12) = 12^3 - 9 * 12$

$f(12) = 1728 - 108$

$f(12) = 1620$

Calculating f(6)

$f(6) = 6^3 - 9 * 6$

$f(6) = 216 - 54$

$f(6) = 162$

Substitute 12 for b and 6 for a in $A(x) = \frac{f(b) - f(a)}{b - a}$

$A(x) = \frac{f(12) - f(6)}{12 - 6}$

Substitute values for f(6) and f(12)

$A(x) = \frac{1620 - 162}{12 - 6}$

$A(x) = \frac{1458}{ 6}$

$A(x) = 243$

4 0

2 years ago

If 1/5 cup of icing covers 1/3 of a cake, how many total cups of icing are needed to cover the entire cake? Plz show work:)

Rashid [163]

Answer:

B. 3/5

Step-by-step explanation

1/5 of icing = 1/3 of a cake

1/3 * 3/1 = 3/3 = 1 (a whole cake)

1/5 * 3/1 = 3/5

5 0

3 years ago

Read 2 more answers

Please help me with this question <br><br> image attached

Dmitry [639]

THE answer would be 38. letter C.

4 0

2 years ago

Please help im struggling on this

Ksivusya [100]

Answer:

It looks like you cut off part of the questions...

Step-by-step explanation:

8 0

2 years ago

The value of Peter's house has risen 10% a year for the last 3 years. if the value of Peter's home 3 years ago was $120,000.00,

pickupchik [31]

The answer is $132,000

First you multiply 120,000 by .10 which you get 12,000

Then you just add it and you find the answer

5 0

2 years ago