The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).x2 + y2 - 4x = 0
A. r sin2 ? = 4 cos ?
B. r cos2 ? = 4 sin ?
C. r = 4 sin ?
D. r = 4 cos ?
Answer: D
Mathematics
You might also like to view...
Write a mathematical expression for the word phrase.Sixty-three is not equal to negative sixty-three
A. 63 = -63 B. 63 ? -63 C. 63 ? -63 D. 63 ? -63
Mathematics
Find the sum of the terms of the arithmetic sequence.
, 
, - 
, - 
, . . ., - 
n = 12
A. - 22 B. - 32 C. 16 D. - 16
Mathematics
Provide an appropriate response. Divide a straight angle into 7 equal angles, rounding to the nearest second.
A. 25° 42' 51" B. 25.7° C. 25° 42' 85" D. 25°.714'
Mathematics
Solve using the addition principle and/or the multiplication principle.38 = 4x + 2
A. 36 B. 7 C. 9 D. 32
Mathematics