Use a proportion to solve the problem.On a map, the length of a nature-center trail is 7.4 centimeters. If the scale is 3 centimeters to 40 kilometers, what is the actual length of the trail?
A. 102.7 kilometers
B. 197.4 kilometers
C. 99.7 kilometers
D. 98.7 kilometers
Answer: D
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Solve the problem.Find the volume generated by revolving about the y-axis the area bounded by the curves 2x2 - y2 = 8, x = 5
A. 28?
B. 28?
C. 14?
D. 28?
Find the indicated probability.The table below describes the smoking habits of a group of asthma sufferers.
If one of the 1068 subjects is randomly selected, find the probability that the person chosen is a nonsmoker and a woman. Round your answer to the nearest thousandth when necessary.
A. 0.498 B. 0.489 C. 0.352 D. 0.707
Provide an appropriate response. Find the equation of the line that is normal to the line x - 2y = 5 and passes through the point (-4, -7). Write the equation in standard form.
A. 2x + y = 1 B. x - 2y = 10 C. 2x - y = -1 D. 2x + y = -15
Evaluate the exponential expression. 93
A. 512 B. 27 C. 19,683 D. 729