Calculator question.
Whats is the minimum window that allows r^2=4cos(2theta)
multiple choice
A. [0,2pi]
B. [0,pi]
C. [-2pi,2pi]
D [0,pi/2]

The circumference of a circle is 60 pi cm3what is the radius of the circle

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2xdesmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83