Arandom sample of size 25 is taken from a nor- mal population having a mean of 80 and a standard deviation of 5. a second random sample of size 36 is taken from a different normal population having a mean of 75 and a standard deviation of 3. find the probability that the sample mean computed from the 25 measurements will exceed the sample mean com- puted from the 36 measurements by at least 3.4 but less than 5.9. assume the difference of the means to be measured to the nearest tenth.

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

cant open file sorry!

step-by-step explanation: