Evaluate the limit.
A. 1
B. 0
C. 
D. ?
Answer: B
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Find an antiderivative of the given function.4 cos 8x
A. - 32 sin 8x
B. sin 8x
C. 4 sin 8x
D. 
sin 8x
Solve the problem.A rectangular steel plate expands as it is heated. Find the rate of change of area with respect to temperature T when the width is 
and the length is 
if 
and 
A. 3.6 x 10-5 cm2/°C B. 1.9 x 10-5 cm2/°C C. 4 x 10-5 cm2/°C D. 0.8 x 10-5 cm2/°C
Identify a method whereby a random sample can be selected from the population.The organizer of a contest would like to select a random sample of 20 prizewinners from the 627 contestants who correctly answered all questions.
A. Select the first 20 contestants whose names begin with the letter C. B. Choose the 20 responses which have the earliest postmark. C. Construct a spinner with ten 36° sectors numbered 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. Assign each contestant a number from 001 to 627. Generate a random sequence of three-digit numbers by repeatedly spinning the spinner 3 times. Ignore any number greater than 627, any number already obtained, or 000. When 20 appropriate numbers have been generated, they can be used to identify the contestants to be included in the sample.
Solve the problem.100 employees of a company are asked how they get to work and whether they work full time or part time. The figure below shows the results. If one of the 100 employees is randomly selected, find the probability that the person does not commute by public transportation.
1. Public transportation: 8 full time, 8 part time2. Bicycle: 5 full time, 3 part time3. Drive alone: 28 full time, 33 part time4. Car pool: 9 full time, 6 part time
A. 0.16 B. 0.84 C. 1.00 D. 0.42