Find the exact value of the expression.
A. - 
B. -2
C. - 
D. -
Answer: D
Mathematics
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Use a sum-to-product identity to rewrite the expression.sin 50° - sin 44°
A. 2 cos 47° cos 3° B. 2 cos 47° sin 3° C. -2 sin 47° sin 3° D. 2 sin 47° cos 3°
Mathematics
Factor the polynomial completely.81p4 - 126p3 + 49p2
A. p2(9p + 7)2 B. p2(81p + 1)(p + 49) C. p2(9p - 7)2 D. p2(9p - 7)(9p + 7)
Mathematics
Write a system of inequalities whose solution set is the region shown.
A. y ? -x + 2 y ? -2x + 5 B. y ? x + 2 y ? 2x + 5 C. y ? -x + 2 y ? -2x + 5 D. y ? x + 2 y ? 2x + 5
Mathematics
Find the slope of the line.
A. -3 B. 1 C. 3 D. -1
Mathematics