Use a sum-to-product identity to rewrite the expression.sin 18° + sin 27°
A. 2(cos (22.5°) sin (-4.5°))
B. 2(cos (22.5°) cos (-4.5°))
C. 2(sin (22.5°) sin (-4.5°))
D. 2(sin (22.5°) cos (-4.5°))
Answer: D
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Use prime factorization to find the GCF of the pair of numbers. If the GCF is 1, write "relatively prime."42 and 126
A. 6 B. 14 C. 42 D. 21
Determine whether the ordered pair is a solution of the given linear equation.7x - 5y = 28; (0, 4)
A. no B. yes
Consider the function h as defined. Find functions f and g so that (f ? g)(x) = h(x).h(x) = 
+ 10
A. f(x) = 
, g(x) = 10
B. f(x) = x, g(x) = 
+ 10
C. f(x) = x + 10, g(x) = 
D. f(x) = 
, g(x) = 
+ 10
Multiply the polynomials using a special product formula. Express the answer as a single polynomial in standard form.(5x + 4)3
A. 25x6 + 20x3 + 4096 B. 125x3 + 300x2 + 240x + 64 C. 125x3 + 300x2 + 300x + 64 D. 25x2 + 40x + 16