Answer:
i tried it by trial and error, and my work is below.
Step-by-step explanation:
2x + 9 = 23
subtract 9 from both sides
2x = 14
guess.... lol
x=7
1) Type of motion: constant acceleration.
2) acceleration, a = 9.8 m/s^2
3) time up = time down = 4seconds / 2 = 2 seconds
4) formula = Vf = Vo - a*t^2/2
Vf = 0 => Vo = a*t^2 / 2 = 9.8m/s^2 * (2 s)^2 / 2 = 19.6 m/s
Answer: 19.6 m/s
Step-by-step explanation:
11(2y+1)
hope it helps.....
She used the associative property which should only be used with positive numbers (sorry if it isn't the answer you're looking for)
Answer:
2 1/4
Step-by-step explanation:
-11/2+7 3/4
-11/2 + 31/4
= 9/4
= 2 1/4