Use a sum-to-product identity to rewrite the expression.sin 
- sin 
A. 2sin 
cos 
B. 2cos 
sin 
C. 2cos 
cos 
D. 2sin 
sin 
Answer: B
Mathematics
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Solve the problem.Use the sequence of equations to find the unknown sum.1 = 11 + 3 = 41 + 3 + 5 = 9 . . . . . . . . . 1 + 3 + 5 + . . . + 1201 = ?
A. 76,176 B. 361,201 C. 90,601 D. 89,975
Mathematics
Solve the equation:
Mathematics
Match the equation to the correct graph.y = (x + 5)2
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.If m
n and m?f = 125° in the following figure, find the measures ?b, ?c, ?h.
A. m?h = 125°; m?b = m?c = 55° B. m?b = m?h = 125°; m?c = 55° C. m?b = m?h = 125°; m?c = 35° D. m?b = m?h = 125°; m?c = 65°
Mathematics