Solve the problem.The perimeter of a rectangular room is 52 ft. The width is 9 ft. Find the length.
A. 17 ft
B. 18 ft
C. 16 ft
D. 43 ft
Answer: A
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Find the indicated probability. Round your answer to 6 decimal places when necessary.A sample of 4 different calculators is randomly selected from a group containing 46 that are defective and 23 that have no defects. What is the probability that all four of the calculators selected are defective?
A. 0.0625 B. 0.1975 C. 0.1888 D. 18.4286
Translate to a proportion and solve. When necessary, round to the nearest hundredth.What is 8.0% of 31?
A. 0.25 B. 248 C. 2.48 D. 24.8
Write the expression in standard form. Do not use a calculator.10i - 5i
A. 5i B. 5 C. 15i D. -5i
The graph of a function f is given. Use the graph to answer the question.Find the numbers, if any, at which f has a local maximum. What are the local maxima?
A. f has a local maximum at -?; the local maximum is 1 B. f has no local maximum C. f has a local maximum at x = 0; the local maximum is 1 D. f has a local maximum at x = -? and ?; the local maximum is -1