Whích quadratic regression equation best fits the data set? A. ŷ = 0.155x2 – 4.074x + 38.910

B. ŷ = 0.155x2 – 4.074x – 38.910

C. ŷ = 38.910x2 – 4.074 +0.155

D. ŷ = 38.910x2 – 4.074 – 0.155

the answer to question 1 is -8, 28.

step-by-step explanation:

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;

5.762159

step-by-step explanation:

it would be 9 because when it is the nine is over five so that would mean it rounds up to 90 or 9