Answer: The car will skid 200 miles
Step-by-step explanation:
The formula S= 7/2√2D
can be used to approximate the speed S, in miles per hour, of a car that has left skid marks of length D, in feet. To determine how far a car will skid at 70 mph, we will substitute 70 mph for S in the formula. It becomes
70 = 7/2√2D
We will take squares of both sides. This is to simplify the square root on the right had side of the equation. It becomes
70^2 = 7^2/2^2(√2D)^2
4900 = 49/4 × 2D
4900 = 49D/2
Cross multiplying,
49D = 2 × 4900 = 9800
D = 9800/49 = 200
Answer:
3/8
Step-by-step explanation:
8/8-5/8= 3/8
Answer:
lol
Step-by-step explanation:
Answer:
<u>120</u>
Step-by-step explanation:
15 ⋅ 8 = 120
3/4+1/3= 13/12 = 1 1/12 />9/12+ 4/12
3 lbs are 2 12/12
2 12/12 -1 11/12= 1 1/12. One and one twelve
