The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).x2 = 4y
A. 4 cos2 ? = r sin ?
B. 4 sin2 ? = r cos ?
C. r sin2 ? = 4 cos ?
D. r cos2 ? = 4 sin ?
Answer: D
Mathematics
You might also like to view...
Find the derivative.s = 4t2 + 9t + 4
A. 8t2 + 9 B. 8t + 9 C. 4t2 + 9 D. 4t + 9
Mathematics
Use the coordinates of the indicated points to find the slope of the line.
A. 1 B. -5 C. -1 D. 5
Mathematics
Solve the equation.16x + 9x - 8x = 34
A. {17}
B. 
C. {2}
D. 
Mathematics
A box contains six $1 bills, four $5 bills, and 8 $10 bills. One bill is drawn at random. What is the expected value of each trial?
What will be an ideal response?
Mathematics