Find the domain of the function.f(x) = 
x2
A. x ? 
B. x ? 
C. x ? 3
D. All real numbers
Answer: D
Mathematics
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Factor the trinomial completely.x3 + 5x2 - 84x
A. x(x - 12)(x + 7) B. (x2 + 7)(x - 12) C. x(x + 12)(x - 7) D. (x2 + 12)(x - 7)
Mathematics
Perform the operation and simplify, or solve the equation for the variable.
+ 
A. 
B. 
C. 
D. 
Mathematics
Decide whether the equation defines y as a function of x.y2 = (x - 9)(x + 7)
A. function B. not a function
Mathematics
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.e3x = 7
A. {5.84} B. {0.65} C. {0.16} D. {6.34}
Mathematics