The pH in a reactor varies sinusoidally over the course of a day. The period is 24 hours. Time, hr 0 2 4 5 7 9 12 15 20 22 24 pH 7.6 7 7.1 6.5 7.4 7.2 8.9 8.8 8.9 7.9 7 Problem 19.003.a Find best fit with least-squares regression Identify the best fit for the given data using least-squares regression

step-by-step :

step-by-step explanation:

graph using a few selected

x         y

-1       15

0         6

1         2.4

2       0.96

5 + 8 +7 + 4 + 0 +1 = 25

step-by-step explanation:

p(x)= 8 x³ - 36 x² + 54 x - 27

q(x) = 2 x -3

you can check your mistake and then you can choose the correct option.

dividend =   8 x³ - 36 x² + 54 x - 27

divisor = 2 x -3

if you want to find quotient, proceed as follows

q(x)= 0

2 x - 3=0

x =

now , i have used division method , to find quotient and remainder