Simplify the expression. Write with only positive exponents. Assume that variables represent positive real numbers.z-2/5z3/5
A. z5/6
B. z-1/5
C. z6/5
D. z1/5
Answer: D
Mathematics
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Rewrite the trigonometric expression as an algebraic expression involving the variable u. Assume that 
and that the value of the "inner" inverse trigonometric expression represents an angle ? such that 
cos (sin-1 u)
A. 
B. 
C. 
D. 
Mathematics
Does the equation 
have any roots that are real numbers?
?
A. no B. yes
Mathematics
Find the greatest common factor.17, 68
A. 4 B. no common factor C. 68 D. 17
Mathematics
The symbolic representation of f and g are given. Use a graph of f and g to estimate the solution of f(x) = g(x). Round to the nearest tenth.f(x) = e0.37x, g(x) = 21
A. -3.1 B. 2.7 C. 4.0 D. 8.2
Mathematics