Solve.A gardener is fencing off a rectangular area with a fixed perimeter of 80 ft. What is the maximum area?

A. 1600 ft2
B. 400 ft2
C. 20 ft2
D. 5 ft2


Answer: B

Mathematics

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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = x2 between x = 2 and x = 6 using a right sum with four rectangles of equal width.

A. 62 B. 69 C. 54 D. 86

Mathematics

Solve the problem.Two friends decide to meet in Chicago to attend a Cub's baseball game. Rob travels  in the same time that Carl travels  Rob's trip uses more interstate highways and he can average  more than Carl. What is Rob's average speed?

A. 42 mph B. 46 mph C. 52 mph D. 49 mph

Mathematics

Factor the difference of two squares.9x2 - 25y2

A. (3x - 5y)2 B. (3x + 5y)(3x - 5y) C. (3x + 5y)2 D. prime

Mathematics

Solve the equation. Express radicals in simplest form.x2 = 0.16

A. {-5, 5} B. {0.4} C. {-0.4, 0.4} D. {8}

Mathematics