Provide an appropriate response.The formula 
can be used to estimate the speed of a car, v, in miles per hour, based on the length, L, in feet, of its skid marks upon sudden braking on a dry asphalt road. If a car is involved in an accident and its skid marks measure 31.25 feet, at what estimated speed was the car traveling when it applied its brakes just prior to the accident?
A. 20 mph
B. 25 mph
C. 30 mph
D. 35 mph
Answer: B
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Find the second derivative of the function.s = 
A. 
= 5t4 - 
- 
B. 
= 20t5 + 
+ 
C. 
= 5t3 - 
- 
D. 
= 20t3 + 
+ 
Solve.Due to the use of computers, a company's payroll processing time will decrease 60% from the original time of 12.5 hours. How long will it take to process the payroll using a computerized system?
Fill in the blank(s) with the appropriate word(s).
Use the associative property of addition to write an equivalent algebraic expression.(yz + a) + x
A. y(z + a) + x B. y + (za + x) C. x + (yz + a) D. yz + (a + x)
Solve the problem.A rain gutter is made from sheets of aluminum that are 27 inches wide. The edges are turned up to form right angles. Determine the depth of the gutter that will allow a cross-sectional area of 52 square inches. There are two solutions to this problem. Round to the nearest tenth of an inch.
A. 2.8 in. and 13.4 in. B. 1.7 in. and 19.9 in. C. 2.1 in. and 24.9 in. D. 2.3 in. and 11.2 in.