Solve the problem.The formula r = 2
can be used to approximate the speed r, in miles per hour, of a car that has left a skid mark of length L, in feet. What was the speed of a car that left a skid mark of 165 feet?
A. 10
mph
B. 330 mph
C. 5
mph
D. 50
mph
Answer: A
Mathematics
You might also like to view...
Solve the problem.In a right triangle, one acute angle is 54° more than twice the other. Find each acute angle.
A. 21° and 69° B. 12° and 78° C. 37° and 53° D. 28° and 62°
Mathematics
Solve the problem.A machine can fill 7,704 boxes of cereal in 0.9 hour. How many boxes of cereal can it fill per hour?
A. 7,704 boxes B. 6,934 boxes C. 8,560 boxes D. 7,705 boxes
Mathematics
Find the exact value by using a half-angle identity.cos - 
A. 
B. 
C. 
D. 
Mathematics
Simplify the expression. Assume that all variables are non-negative.
A. x
B. x3
C. x6
D. 
Mathematics