Rationalize the denominator. Assume that all variables represent positive real numbers.- 
A. -3
B. - 
C. -40
D. - 
Answer: D
Mathematics
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Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Solve the equation for ? if 
. Give your answer in degrees.
?
?
A. 240°, 300° B. 225°, 315° C. 120°, 240° D. 60°, 120° E. 45°, 135°
Mathematics
Use even and odd properties of the trigonometric functions to find the exact value of the expression.cos 
A. - 
B. 
C. 
D. - 
Mathematics
Factor as completely as possible. If unfactorable, indicate that the polynomial is prime.x2 - 20x + 400
A. (x + 20)2 B. (x - 20)2 C. Prime D. (x + 20)(x - 20)
Mathematics