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levacccp [35]
3 years ago
11

According to data from the U.S. Department of Education, the average cost y of tuition and fees at public four-year institutions

in
year x is approximated by the equation
y = 0.024x* -0.87x + 9.6x² +97.2x + 2196
where x = 0 corresponds to 1990. If this model continues to be accurate, during what year will tuition and fees reach $4000?
a. 2000
C. 2016
b. 2010
d. 2004
Mathematics
2 answers:
taurus [48]3 years ago
8 0

Answer:

D

Step-by-step explanation:

edge2020

lianna [129]3 years ago
6 0

Answer:

D

Step-by-step explanation:

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Vlada [557]
We want to find \displaystyle{  \frac{dy}{dx}, for

            \displaystyle{ y=(x^2+2)^3(x^3+3)^2.

Recall the product rule: for 2 differentiable functions f and g, the derivative of their product is as follows:

                                  (fg)'=f'g+g'f.

Thus,

 y'=[(x^2+2)^3]'[(x^3+3)^2]+[(x^3+3)^2]'[(x^2+2)^3]\\\\ =3(x^2+2)^2(x^3+3)^2+2(x^3+3)(x^2+2)^3

Answer: A)      3(x^2+2)^2(x^3+3)^2+2(x^3+3)(x^2+2)^3.



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3 years ago
300 divided by 3 x 33
Airida [17]

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