Answer:
t = 1/8 ± √(1 − 4d) / 8
Step-by-step explanation:
d = -16t² + 4t
Move everything to the left side:
16t² − 4t + d = 0
Solve with quadratic formula:
t = [ -(-4) ± √((-4)² − 4(16)(d)) ] / 2(16)
t = [ 4 ± √(16 − 64d) ] / 32
t = [ 4 ± 4√(1 − 4d) ] / 32
t = [ 1 ± √(1 − 4d) ] / 8
t = 1/8 ± √(1 − 4d) / 8
Answer:
C.) 3 1/6 hours
(won't let me write in fraction form, riip)
hopefully my answer helps! ♡
(if my answers helped you please tell me, therefore I know.. that I did them correctly or incorrectly. anyways, have a great day/night!)
Step-by-step explanation:
Multiply 6 1/3 by 1/2.
6 1/3 x 1/2 =
Answer:
3 1/6 hours
