Answer:
Calculate the skid speed by multiplying the drag factor times the braking efficiency times the skid distance times 30 and taking the square root of the result. For example, if the car skidded 120.5 feet on a road with a drag factor of 0.5 and left four skid marks, the car was going about 42.51 mph.
Step-by-step explanation:
Answer:
The pretzels are 20% of the total weight of the snack.
Step-by-step explanation:
Total weight 12 + 20 + 8 = 40
So 8 / 40 = 20%
Answer:
a^2-1
Step-by-step explanation:
(a+1)(a-1)
=a^2-1
Answer:

Step-by-step explanation:

Expand with the distributive rule:


Add 4/3 to both sides:

Subtract 4x from both sides


