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snow_tiger [21]

3 years ago

8

The sale price of a new compact disc player is $202 at a local discount store. At the store where this sale is going on, each ne

w CD is on sale for $13 each. If Kyle purchases a player and some CDs for $319, how many CDs did he purchase?

1 answer:

Veronika [31]3 years ago

4 0

Answer:

9

Step-by-step explanation:

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Step-by-step explanation:

(7-4)/(-2-6)= 3/-8 = -3/8 is the slope

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san4es73 [151]

Step-by-step explanation:

Given: $f'(x) = x^2e^{2x^3}$ and $f(0) = 0$

We can solve for f(x) by writing

$\displaystyle f(x) = \int f'(x)dx=\int x^2e^{2x^3}dx$

Let $u = 2x^3$

$\:\:\:\:du=6x^2dx$

Then

$\displaystyle f(x) = \int x^2e^{2x^3}dx = \dfrac{1}{6}\int e^u du$

$\displaystyle \:\:\:\:\:\:\:=\frac{1}{6}e^{2x^3} + k$

We know that f(0) = 0 so we can find the value for k:

$f(0) = \frac{1}{6}(1) + k \Rightarrow k = -\frac{1}{6}$

Therefore,

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A company made a profit of $90,000 in the year 2006. In 2010, the same company made a total profit of $135,000. If the rate of c

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Answer:

Average rate of change = $11250 per year.

Step-by-step explanation:

Let's take two points from given information (2006, 90000) and (2010, 135000).

Now, use slope formula to find slope.

Slope = $\frac{y2-y1}{x2-x1}$

Use the two points to find average rate of change (slope)

Average rate of change = $\frac{135000-90000}{2010-2006}$

= $\frac{45000}{4}$

=11250

Average rate of change = $11250 per year.

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