Decide whether or not the given equation is an identity.sin(x + y) + sin(x - y) = 2 sin x cos y
A. Yes
B. No
Answer: A
Mathematics
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LetU = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}Determine the following. B ? (A - C)
A. {q, s, u, y, z} B. {q, r, s, t, u, v, w, x, y} C. {q, s, u, y} D. {q, s}
Mathematics
Provide an appropriate response.Solve the following absolute value equation: 
= 5
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.The First National Bank pays 3% simple interest per year on certificate accounts. What is the annual income on a certificate account of 
? Round to the nearest dollar.
A. $31,920 B. $355 C. $3192 D. $3547
Mathematics
Sketch the graph of the parabola.y = -x2 + 2x - 6
A. 
B. 
C. 
D. 
Mathematics