Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 5
D. 
Answer: B
Mathematics
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Translate each graph to an inequality using the variable x.
A. x > -5.2 B. x ? -5.2 C. x ? -5.2 D. x < -5.2
Mathematics
Write the phrase as a variable expression. Use x to represent "a number."The quotient of 10 and a number, added to -21
A. 
B. -21 + 
C. 10 + x + (-21)
D. -21 + 
Mathematics
Use a graphing utility to graph the function over the indicated interval and approximate any local maxima and local minima. If necessary, round answers to two decimal places.f(x) = 2 + 8x - x2; (-5, 5)
A. local maximum at (-4, 50) B. local minimum at (4, 50) C. local maximum at (4, 18) D. local minimum at (-4, 18)
Mathematics
Decide if the given number is a solution to the given equation.8m + 7 = 41; 4
A. Yes B. No
Mathematics