The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r = 2(sin ? - cos ?)
A. 2x2 + 2y2 = x - y
B. x2 + y2 = 2x - 2y
C. x2 + y2 = 2y - 2x
D. 2x2 + 2y2 = y - x
Answer: C
Mathematics
You might also like to view...
Determine whether the function is one-to-one.
A. Yes B. No
Mathematics
Choose the closest estimate.The boy is 2.2 
tall.
A. mm B. cm C. km D. m
Mathematics
Use the graph to solve the rational equation.
- 1 = -3
A. No solutions B. 0 C. 2 D. -2
Mathematics
Write the algebraic expression described.A quadrilateral is a four-sided figure whose angle sum is 360°. If one angle measures x°, a second angle measures 2x°, and a third angle measures 5x°, express the measure of the fourth angle in terms of x.
A. (8x - 360)° B. (360 - 7x)° C. (360 - 8x)° D. (360 + 8x)°
Mathematics