Determine whether the function is one-to-one.
?
?
A. Yes, it is one-to-one.
B. No, it isn't one-to-one.
Answer: B
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Solve the problem.The odds of guessing the correct answer on a multiple choice test are 3 to 1. What is the probability of guessing all correct answers on a test with 7 problems?
A. 
B. 
C. 
D. 
Perform the indicated operations. Express the answer as a single polynomial in standard form.-8x7(6x2 - 5)
A. -8x7 B. -48x9 - 5 C. -48x2 + 40 D. -48x9 + 40x7
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 4a
C. 29
D. 
Solve the problem.A rock falls from a tower that is 78.4 m high. As it is falling, its height is given by the formula 
with t in seconds. How many seconds will it take for the rock to hit the ground (h = 0)?
A. 1254.4 sec B. 4 sec C. 8.6 sec D. 8.9 sec