Answer the problem with a sentence containing the requested unit of measure. Write improper fractions as mixed numbers for U.S. measures and as decimals for metric measures.A child is 46 inches tall. Express this number in centimeters.
A. A child is 115 centimeters tall.
B. A child is 120 centimeters tall.
C. A child is 18.4 centimeters tall.
D. A child is 110 centimeters tall.
Answer: A
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Solve the problem.John owns a hotdog stand. His profit is represented by the equation P = -x2 + 10x + 31, with P being profits and x the number of hotdogs. What is the most he can earn?
A. $25 B. $51 C. $66 D. $56
Solve the problem.For x > 0, sketch a curve y = f(x) that has f(1) = 0 and f '(x) = - 
. Can anything be said about the concavity of such a curve? Give reasons for your answer. 
What will be an ideal response?
Factor and simplify the expression.1 - 2 sin2x + sin4x
A. (1 + tan2x) B. cos4x C. (1 - sin2x) D. sin2x
Band trip A high school band trip will require renting buses and trucks to transport no fewer than 280 students and 16 or more large instruments. Each bus can accommodate 120 students plus three large instruments; it costs $350 to rent. Each truck can accommodate 20 students plus 5 large instruments and costs $185 to rent. How many of each type of vehicle should be rented for the cost to be minimum? Find the minimum cost. ?
A. 4 buses and no trucks: $1,400 B. 2 buses and 2 trucks: $1,070 C. no buses and 14 trucks: $2,590 D. 1 bus and 4 trucks: $1,090 E. none of these