Solve the equation using the multiplication property of equality.9a = -81
A. {1}
B. {90}
C. {-9}
D. {-90}
Answer: C
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Add or subtract. Simplify if possible.
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A. 
B. 
C. 
D. 
The position of car A and car B, starting out side by side and traveling along a straight road, is given by s = f(t) and s = g(t), respectively, where s is measured in feet and t is measured in seconds (see the accompanying figure).
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Which car is traveling faster at t?1, t?2 and t?3?
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A. Cars are traveling at the same speed at t?1, car B is traveling faster at t?2, car A is traveling faster at t?3 B. CarAis traveling faster at , carBis traveling faster at t?2, cars are traveling at the same speed at t?3 C. Car A is traveling faster at t?1, car B is traveling faster at t?2, car A is traveling faster at t?3 D. Car A is traveling faster at t?1, cars are traveling at the same speed at t?2, car B is traveling faster at t?3
Evaluate the determinant.
A. -80 B. -40 C. 32 D. 40
Solve the problem.In how many ways can you answer the questions on an exam that consists of 7 multiple choice questions, each of which has 3 answer choices?
A. 3027 B. 2187 C. 1957 D. 343