Solve.A rectangle that is x feet wide is inscribed in a circle of radius 32 feet. Express the area of the rectangle as a function of x. Graph the function and from the graph determine the value of x, to the nearest tenth of a foot, which will maximize the area of the rectangle.
A. 45.7 feet
B. 44.9 feet
C. 44.5 feet
D. 45.3 feet
Answer: D
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The following graph shows the populations of the metropolitan areas of City X and City Y over six years. 
At the time when the populations of the two metropolitan areas were equal, what was the approximate population of each area?
A. about 1.03 million B. about 0.87 million C. about 0.92 million D. about 0.95 million
Evaluate the expression for the given value or values.xy, for x = -8, y = -7
A. 
B. -56
C. 15
D. 56
Check the addition. If the answer is incorrect, find the correct answer.
1172
A. Incorrect; should be 1152 B. Incorrect; should be 1162 C. Incorrect; should be 1252 D. Correct
Evaluate the square root and approximate to two decimal places if necessary.
A. 4.58 B. 21.01 C. 42.00 D. 7.00