Use the even-odd identities to find the exact value of the expression. cos 
A. 0
B. undefined
C. -1
D. 1
Answer: A
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Solve the formula for the given variable.A = 
h(B + b) for B
A. B = 
B. B = 
C. B = 
D. B = 2A - bh
Provide an appropriate response.Explain how the multiplication and addition principles are used in solving systems of equations using the elimination method.
What will be an ideal response?
Write an equation. Then, solve and check.As a result of a cold front moving into the region, the temperature dropped 8.6 degrees Fahrenheit to 71.7°F. What was the temperature before the cold front moved into the region?
A. 71.7 - x = 8.6; x = 80.3°F B. x = 71.7 - 8.6; x = 63.1°F C. x - 8.6 = 71.7; x = 63.1°F D. x - 8.6 = 71.7; x = 80.3°F
Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.Degree 6; zeros: -2, 2 + i, -1 - i, 0
A. 2, 2 - i, -1 + i B. -2 - i, 1 + i C. 2 - i, -1 + i D. -2 + i, 1 - i