Answer:
Step-by-step explanation:
acceleration, a = 20 m/s^2
initial velocity, u = 0 since it starts from rest
final velocity, v = 400 m/s
v = u + at
400 = 0 + 20 t
400 = 20 t
t = 400 / 20
<u><em>t = 20 sec</em></u>
Hope this helps
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Answer:
Sam made a mistake, and their correct value is 30.
Step-by-step explanation:
That would be simplified into
1.41 • 1.73 • 2.82 = 6.9
i don’t know what the choices are bc you didn’t put them but hopefully this does someone some good <3
Answer:
b,c,e
Step-by-step explanation:
4 hours for 18
7 hours for 25.50
Difference in hours: 7-4 = 3
Difference in cost: 25.50 - 18 = 7.50
7.50 / 3 = 2.50
A. They charge 2.50 per hour.
B. 2.50 x 4 = 10
18 - 10 = 8
The flat fee is 8 dollars
C. 8 + (2 x 2.50) = 13 dollars
