Simplify the radical expression. Assume all variables represent nonnegative real numbers.
A. 3xy
B. 3xy
C. xy
D. 3xy
Answer: D
Mathematics
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Find a Cartesian equation for the parametric equations.x = 5 tan ?, y = 4 cot ?
A. y = 
cos x
B. y = 
sin x
C. xy = 20
D. 
= 20
Mathematics
There were many names mentioned in this section. Give a brief description for the person named in problem, telling how they were related to the development of computers. ? Aristophanes ?
A. 1st computer in the 1800s B. Bill Gates' partner in Microsoft C. finger counting D. 19th century calculating machine E. 1st computer in the 1990s
Mathematics
Solve the equation symbolically.
p - 
p = 3
A. -24 B. 24 C. 21 D. -21
Mathematics
Rationalize the denominator. Simplify, if possible.
A. 
B. 
C. 
D. 
Mathematics