Solve the problem. Round your answer to two decimal places.The area of a circle varies directly as the square of the radius of the circle. If a circle with a radius of 5 inches has an area of 78.5 square inches, what is the area of a circle with a radius of 8 inches?

A. 203.36 in2
B. 25.12 in2
C. 200.96 in2
D. 50.24 in2


Answer: C

Mathematics

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Solve the problem.Evaluate 

A.
B.
C.
D.

Mathematics

Which of the tables below show linear data?Table 1  x 4 8 12 16 y 37.95 41.73 45.05 47.45? Table 2        x 4 8 12 16 y 35.36 39.14 42 44.86?

A. Table 1 only B. Table 2 only C. Both Table 1 and Table 2 D. Neither table is linear.

Mathematics

For the functions f(x) and g(x), evaluate the indicated function.Find (f + g)(-4) when f(x) = x - 7 and g(x) = x - 1.

A. -16 B. -14 C. 0 D. -2

Mathematics

Simplify the expression. Write with only positive exponents. Assume that variables represent positive real numbers.3-3 ? 35

A. 915 B. 32 C. 3-15 D. 92

Mathematics