Answer:
option A. 21 sec
Step-by-step explanation:
Speed = the distance over the time
Given:
Speed = 2 m/s and distance = 42 m and time = t
So,
2 = 42/t
Solve for t
t = 42/2 = 21 sec.
The answer is option A. 21 sec
Answer:
Mean height of 159
Step-by-step explanation:
Add 153 and 165, then divide by 2 to find the average of 159.
Answer:
hftgftghgdfhgsdjthfdhrtfgredfgesdf
Step-by-step explanation:
Answer:
=x
Step-by-step explanation:
0=(x-5)3
0=(3x-5)
5=3x
=x
Answer:
1/4
Step-by-step explanation:
Distribute.
7 - 7y = -3y + 6
Get all ys on one side
7 = 4y + 6
Get constants all on one side.
1 = 4y
Divide
1/4 = y