Help! please and thank you!1

A= 6

B = 99

C = 63

Step-by-step explanation:

A) Getting the maximum we would need the derivative equal to zero.

The derivative is - = 0 This means that the maximum is at t= 6. So it means it would take 6 hours.

B) The maximum score is done by placing the t= 6 into the formula and solving for s, which is the score. This will give us 99, the highest possible score.

C) if the student does no homework, it means he didn't spend any time on it and that means that t= 0.

As for the root question, plug it in the formula it should add up to zero, haven't done roots in a long time.

Hope this helps.

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)