Convert to polar coordinates with and between and

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What will be an ideal response?

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Mathematics

Find the focus and directrix of the parabola.x = 4y2

A. (0, 1/16); x = 1/16 B. (1/16, 0); x = -1/16 C. (1/4, 0); x = -1/4 D. (0, 1/16); y = -1/16

Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = 6xx2

A. 6xx2 + 1(2 ln 6x + 1) B. xx2 + 1 ln 6x C. 6xx2 + 1(2 ln 6x ) D. x(2 ln 6x +1)

Solve the problem.Sales of cassette tapes at a local music store decreased approximately linearly from 1,400,000 cassettes in 1988 to 11,000 cassettes in 1993. Find the rate of change of sales per year.

A. 277,800 cassettes per year B. -2580 cassettes per year C. -277,800 cassettes per year D. -27,780 cassettes per year

Solve.A painter is painting a room that is 720 square feet. However, he ran out of paint after painting 594 sq ft. How many sq ft does he have left to paint?

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