Answer:
Expected Family Contribution
Explanation:
A P E X
Subdividing [0, 1] into 10 equally spaced intervals of length
gives the partition
![[0,1] = \left[0,\dfrac1{10}\right] \cup \left[\dfrac1{10},\dfrac2{10}\right] \cup \cdots \cup \left[\dfrac9{10},1\right]](https://tex.z-dn.net/?f=%5B0%2C1%5D%20%3D%20%5Cleft%5B0%2C%5Cdfrac1%7B10%7D%5Cright%5D%20%5Ccup%20%5Cleft%5B%5Cdfrac1%7B10%7D%2C%5Cdfrac2%7B10%7D%5Cright%5D%20%5Ccup%20%5Ccdots%20%5Ccup%20%5Cleft%5B%5Cdfrac9%7B10%7D%2C1%5Cright%5D)
The
-th subinterval has left and right endpoints, respectively, given by

where
.
The midpoint of the
-th interval is the average of these,

We approximate the area under
over [0, 1] by the Riemann sum,

(D)
Answer:
A
Explanation:
y=3x-12
8^x=(2^3)^x=2^3x
substitute --> 2^3x / 2^(3x-12) = 2^3x / (2^3x /2^12) = 2^12
I'm pretty sure it's chemical properties.