Solve the problem.Which of the following are symmetries of the letter D?
A. a 90° rotation
B. a reflection with axis a horizontal line
C. a reflection with axis a vertical line
D. a reflection with axis a diagonal line
E. none of these
Answer: B
Mathematics
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (1, 0) for cos xy + yex = 0.
A. 1
B. 
C. e
D. 0
Mathematics
Perform the transformation.Write cos x in terms of cot x.
A. 
B. 
C. ± 
D. 
Mathematics
Factor completely.(5m + n)p2 - 9(5m + n)p + 18(5m + n)
A. (5m + n)(p + 3)(p + 6) B. (5m + n)(p - 3)(p - 6) C. (5m + n)(p2 - 9p + 18) D. (5m + n)(p - 3)(p + 6)
Mathematics
Complete. Round to the nearest tenth if necessary.5 in2 = 
cm2
A. 12.5 B. 12.7 C. 2 D. 32.3
Mathematics