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 18 inches?

A. 1019.76 in2
B. 113.04 in2
C. 56.52 in2
D. 1017.36 in2


Answer: D

Mathematics

You might also like to view...

A recipe for spaghetti sauce requires 6 bottles of ketchup to make 8 gallons of sauce. How many bottles of ketchup are needed to make 56 gallons of sauce?

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

Mathematics

Write an equation for the line described. Write the equation in the form specified.parallel to y + 5x = 4, through (3, 5); slope-intercept form

A. y = 5x - 20
B. y = - 5x + 20
C. y = - 5x - 20
D. y = - x - 4

Mathematics

Multiply.-1000 × (-706.941700)

A. -7069.417 B. 706,941.7 C. -7,069,417 D. 70,694.17

Mathematics

The double-line graph shows temperature highs and lows for a week. What was the high temperature reading on Sunday?

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

Mathematics