Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the measures of angles 1, 2, and 3.
A. m?1 = 28°, m?2 = 118°, m?3 = 28° B. m?1 = 118°, m?2 = 62°, m?3 = 118° C. m?1 = 118°, m?2 = 28°, m?3 = 118° D. m?1 = 62°, m?2 = 118°, m?3 = 62°
Mathematics
Find the derivative.y = 4ex2
A. 8xe4x2 B. 8xe2x C. 8xe D. 8xex2
Mathematics
Find the mean for the list of numbers.Cans of soup used by a family in a month: 1, 5, 9, 4, 12, 8Round answer to the nearest whole number if necessary.
A. 9 cans B. 4 cans C. 6 cans D. 7 cans
Mathematics
Solve the equation by completing the square.x2 + 
x - 
= 0
A. 
B. 
C. 
D. 
Mathematics