Solve the problem.Will you be on a higher floor if you take the elevator down 8 floors or up 5 floors?
A. Up 5 floors
B. Down 8 floors
Answer: A
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Find the distance d(P1, P2) between the points P1and P2.P1 = (0, 9); P2 = (-5, 9)
A. 
B. 25
C. 9
D. 5
Choose the best answer.A cheerleader's baton is about how long?
A. 1.1 cm B. 1.1 m C. 1.1 mm D. 1.1 km
Solve the problem.A nuclear scientist has a sample of 
of a radioactive material which has a half-life in hours. She monitors the amount of radioactive material over a period of 30 hours and obtains the following data. Use a graphing utility to fit an exponential function to the data. Round the values to the nearest thousandth. Then, use the function to predict the amount of material, rounded to the nearest tenth, remaining at 40 hours. 
.
A. y = 99.671e-0.077x, 6.7 mg B. y = 99.671e0.926x, 1.2 mg C. y = 99.671e0.077x, 2168.7 mg D. y = 99.671e-0.077x, 4.6 mg
For the pair of vectors, find 
.
?
?
A. 
B. ?
C. ?
D. ?
E. ?