Subtract 5.6 then divide by -2.8. it should be -1
Substitute the -4 to the x’s.
g(-4) = -(-4)^2 + 2(-4) - 9
g(-4) = -16 - 8 - 9
g(-4) = -33
-6/5 -35/4 -23/6 = -(72/60 +525/60 +230/60)
= -827/60 . . . . . as an improper fraction
= -13 47/60 . . . . as a mixed number
You divide 36 by 3 and get 12
Answer:
t = 7.5 seconds
Step-by-step explanation:
Givens
vi = 120 f/s
a = -32 f/s
d = 0 It goes up, stops and comes back down landing where it starts.
Formula
d = vi*t + 1/2 a t^2
Solution
0 = 120*t - 1/2*32*t^2 transfer 120t to the left
-120*t = - 1/2 32 t^2 Multiply 32 and 1/2 together
- 120t = - 16 t^2 Divide both sides by t
-120 = -16 t Divide by -16
-120/-16 = (-16/-16) * t
t = 7.5 seconds