Answer:
That would be Option C.
Step-by-step explanation:
Lets look at y = 4x + 2:-
Let x = a then y = 4a + 2
Now if x in creases to a +2, y = 4(a +2) + 2 = 4a + 8 + 2
= 4a + 10.
(4a + 10) - (4a + 2) = 8 , so this is the required expression, y = 4x + 2.
Answer:
Sorry if my hand writing is bad. I didnt have a calculator for c so idk what it is
Answer:
in the lowest terms.
Step-by-step explanation:
Here, the given expression is : 
Solving the given expression, we get:

Now, to express the fraction into lowest terms
18 = 2 x 3 x 3, 44 = 2 x 2 x 11
So, 
Hence,
in the lowest terms.
Answer:
P(X<118.81)=0.0803
Step-by-step explanation:
Assuming the distribution for the mean life is approximately normal, with mean 120 months and variance 64 months^2, we can calculate the parameters for a sampling distribution with sample size = 89 computers.
The sampling distribution mean will be equal to the mean for a single computer:

The standard deviation will be adjusted by the sample size as:

With these parameters, we can calculate the z-score for X=118.81.

Then, the probability that the mean of a sample of 89 computers is less than 118.81 months is:
