Answer:
c
Step-by-step explanation:
150 is a good sample of a middle school and students at lunch is random again because most students eat lunch

is a right triangle with base length 1 and height 8, so the area of

is

.
The average value of

over

is given by the ratio

The denominator is just the area of

, which we already know. The average value is then simplified to

In the

-plane, we can describe the region

as all points

that lie between the lines

and

(the lines which coincide with the triangle's base and hypotenuse, respectively), taking

. So, the integral is given by, and evaluates to,



It’s -10
Explanation: 8 x 5= 40
40/-4= -10
Answer:
$3
Step-by-step explanation:
8 + 7 = 15
15 - 12 = 3
<span>(x - 8) (x + 8)
= x^2 - 8x + 8x -64
= x^2 - 64</span>