CUNYFirst # Last Name:
First Name:
2. The life of a certain type of engine is normally distributed with a mean of 10 years, and a
standard deviation of 1.5 years.
(1) If one engine is randomly selected, what is the probability that the life of this engine
is between 8 and 13 years?
What are the parameters?

d

step-by-step explanation:

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)

its totaly b

your welcome btw