Use dimensional analysis to solve the problem.An investigating officer examining skid marks at the scene of an accident estimates the speed of the vehicle to have been 86 ft/sec. Was the driver exceeding the 55 mi/hr speed limit? Explain.
A. No. The driver was traveling about 48 mi/hr.
B. Yes. The driver was traveling about 59 mi/hr.
Answer: B
Mathematics
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Use a calculator to evaluate the expression. (If necessary, round your answer to three decimal places.)
?
?
?
A. 70 B. 71 C. 72 D. 74 E. 73
Mathematics
Use the given information to find the exact value of the trigonometric function.cos ? = - 
, ? lies in quadrant III
Find cos 
.
A. 
B. - 
C. 
D. - 
Mathematics
Evaluate the radical expressions or indicate that the root is not a real number.
A. -4 B. 4 C. 64 D. Not a real number
Mathematics
Tell which brand is the better buy.Brand A 42 oz for $10.08Brand B 48 oz for $12.00
A. Brand B B. Brand A C. Equal value D. Not enough information
Mathematics