Simplify the exponential expression.(x-4y5)-2
A. 
B. 
C. 
D. 
Answer: A
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Solve the quadratic equation and simplify your answer. Use i notation for any complex numbers.x(x - 7) + 18 = 6(8 - x)
A. x = 6, x = -5
B. x = 6
C. x = 6, x = 5
D. x = 
, x = -5
Sketch the graph of the function. Use the graph to find the value of the requested quantity.f(x) = 
; 
f(x)
A. -8 B. 1 C. does not exist D. -4
For the given functions f and g, find the requested function and state its domain.f(x) = x + 6; g(x) = 7x2Find f + g.
A. (f + g)(x) = -7x2 + x + 6; all real numbers B. (f + g)(x) = 7x2 + x + 6; all real numbers C. (f + g)(x) = 7x2 - x - 6; all real numbers D. (f + g)(x) = 7x2 + x + 6; {x|x ? -6}
Find the value of the indicated sum.
A. cos 4? + cos 12? = 2 B. cos 4? - cos 8? + cos 12? = - 1 C. cos 4? - cos 8? + cos 12? = 1 D. -cos 4? + cos 8? - cos 12? = -1