Graph the sinusoidal function.y = 
cos (- 
x)
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Translate to an equation, then solve.The difference of four times n and eight is equal to twenty-three less than n.
A. 4n - 8 = n - 23, n = -5 B. 8 - 4n = 23 - n, n = 5 C. 8n - 4n = 23 - n, n = -5 D. 4n - 8n = n - 23, n = 5
Mathematics
Evaluate.9(x - y) and 9x - 9y when x = 7 and y = 16
A. 47, 47 B. 47, 56 C. -81, -81 D. 47, -81
Mathematics
Determine whether the statement is true or false.If f(x) is a polynomial having only real coefficients and 3 - 5i is a zero of f(x), then x - 3 - 5i is a factor of f(x).
A. True B. False
Mathematics
Solve the equation by completing the square.2x2 + 6x = -2
A. 
B. 
C. 
D. 
Mathematics