Provide an appropriate response.If a fraction with denominator 
must be written as an equivalent fraction with denominator 
then the original fraction must be multiplied by (x + 4)2 in both the numerator and the denominator.
A. True
B. False
Answer: B
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Multiply.(39)(52)
A. 2028 B. 2128 C. 2038 D. 2018
Provide an appropriate response.Use the formal definitions of limits to prove 
= ?
What will be an ideal response?
Solve the problem.A person spent 1.1 h in a car going to an airport, 2.15 h flying in a jet, and 0.29 h in a taxi to reach the final destination. The jet's speed averaged 13.0 times that of the car, which averaged 19.0 mi/h more than a taxi. What was the average speed of each if the trip covered 1267.846 mi?
A. Car: 43.4 mi/h, jet: 564 mi/h, taxi: 62.4 mi/h B. Car: 24.4 mi/h, jet: 564 mi/h, taxi: 43.4 mi/h C. Car: 44 mi/h, jet: 565 mi/h, taxi: 24.4 mi/h D. Car: 43.4 mi/h, jet: 564 mi/h, taxi: 24.4 mi/h
Solve the problem.How many different three-number "combinations" are possible on a combination lock having 22 numbers on its dial? Assume that no numbers repeat. (Combination locks are really permutation locks.)
A. 9240 B. 351,120 C. 1,053,400 D. 175,560