Convert as indicated. When necessary, round to the nearest tenth of a degree.72.1° F to degrees Celsius
A. 97.8° C
B. 22.3° C
C. 161.8° C
D. 57.8° C
Answer: B
Mathematics
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Find the polar coordinates of the point(s) of intersection of the given curves for 
r = sin ?, r = 1 - sin ?
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Mathematics
Write the first three terms of the expansion.(3x + 2y)7
A. 2187x7y + 10,206x6y2 + 20,412x5y3 B. 2187x7 + 10,206x6y + 20,412x5y2 C. 7x7y + 6x6y2 + 5x5y3 D. 7x7 + 6x6y + 5x5y2
Mathematics
Factor completely.(x - y)2 - 2(x - y) + 1
A. (x - y - 1)(x - y) B. (x - y - 1)(x - y + 1) C. (x - y - 1)2 D. Prime
Mathematics
Perform the indicated operation and express in lowest terms.
- 
+ 
A. 
B. 
C. 
D. 
Mathematics