Simplify the radical. Indicate if the radical is not a real number. Assume that x represents a positive real number.
A. 64
B. ±8
C. 8
D. 23
Answer: C
Mathematics
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Determine whether the given expression is a monomial (Yes or No). For those that are monomials, state the coefficient and degree.
A. yes; coefficient 1; degree -5 B. no C. yes; coefficient 5; degree 1 D. yes; coefficient 1; degree 5
Mathematics
Evaluate the improper integral.
A. 6 B. -36 C. -6 D. 36
Mathematics
Find the x-intercept(s) of the graph of the equation. Graph the equation.y = x2 + 4x - 7
A. x-intercepts: -4 and 3
B. x-intercepts: none
C. x-intercepts: -2 ± 
D. x-intercept: 4
Mathematics
Find the perimeter. Use 3.14 for ? when needed.
A. 99 in. B. 228 in. C. 70 in. D. 94 in.
Mathematics