Find the area of the circle with the given radius or diameter. Use ? ? 3.14.r = 2.5 ft (Round your answer to the nearest tenth if necessary.)

A. A ? 78.5 ft2
B. A ? 19.6 ft2
C. A ? 31.4 ft2
D. A ? 15.7 ft2


Answer: B

Mathematics

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Write true or false for the following statement.Let A = {3, 5, 7, 9, 11, 13} B = {3, 5, 9, 11} C = {5, 9, 13}Every element of C is also an element of A.

A. True B. False

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Solve.The highest recorded temperature in Massachusetts is 107°F. The state's lowest temperature is 141°F less than its highest. What is the lowest temperature recorded in Massachusetts?

Fill in the blank(s) with the appropriate word(s).

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At what point on the curve x=t³, y=9t, z= is the normal plane parallel to the plane 3x+9y-4z=8?

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Provide an appropriate response.In a graduated payments mortgage, the payments , while in an adjustable-rate mortgage, the rates .

A. become larger, may change up or down B. become smaller, may change up or down C. become smaller, likely will go up D. become larger, likely will go down

Mathematics