Answer:
i think that's right
Step-by-step explanation:
Answer:
Hello. y=1/2x-2
Step-by-step explanation:
The line that is perpendicular to this line ،its slope must be 1/2
So:

Answer:
the answer is 0.
Step-by-step explanation:
this is correct i just did the problem on khan
Answer:
the "acceleration" is -15m/s (it's negative because it is slowing down, not speeding up[it might just be a positive 15m/s if it is called deceleration and not acceleration])
Step-by-step explanation:
30m/s (starting speed)/2 (the number of seconds it took to stop from 30m/s