Use the quadratic formula to solve the equation.x2 + 10x + 41 = 0
A. -9, -1
B. -5 - 16i, -5 + 16i
C. -5 - 4i, -5 + 4i
D. -5 + 4i
Answer: C
Mathematics
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Find the natural domain of the function.f(x, y) = cos-1(x2 + y2)
A. All points in the x-y plane satisfying x2 + y2 ? 1 B. All points in the x-y plane C. All points in the x-y plane satisfying x2 + y2 ? 1 D. All points in the x-y plane except (0, 0)
Mathematics
Match the graph with its exponential function.
a. 
b. 
c. 
d. 
Mathematics
Solve for x.
= 
A. 240 B. 30 C. 120 D. 15
Mathematics
Solve the problem.Volatility refers to:
A. the amount of uncertainty or risk about changes in a security's value B. the likelihood that a security's value will only decrease in value C. a security's value as compared to an industry benchmark D. the likelihood that a security's value will only increase in value
Mathematics