Solve.A rectangle that is x feet wide is inscribed in a circle of radius 20 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. 29.1 feet
B. 28.3 feet
C. 28.7 feet
D. 27.9 feet


Answer: B

Mathematics

You might also like to view...

Find the volume of the indicated region.the region bounded by the paraboloid  and the xy-plane

A. 54? B. 6? C. 27? D. 9?

Mathematics

Create the required linear function an use it to answer the question.In 1995 the United States recovered 20% of its municipal solid wastes through recycling, up from 17% in 1990. Let P represent the percentage recycled and t the number of years since 1990. Based on these two data points, create a linear equation for the function that describes how P varies as a function of time.

A. P = 0.6t + 17 B. P = -0.6t + 7 C. P = 0.6t + 24 D. P = 0.3t - 17

Mathematics

Determine the slope and the y-intercept and write the equation of the line in slope-intercept form.

A. y = - 3
B. y = -5x - 5
C. y = - 5
D. y = -x - 3

Mathematics

Provide an appropriate response.Life insurance provides financial assistance to the surviving dependents of the insured person.

A. True B. False

Mathematics