Solve the equation by making an appropriate substitution.2x1/2 - 3x1/4 - 20 = 0
A. 
B. {-4, -5}
C. {256}
D. 
Answer: C
Mathematics
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Find the inverse of the following one-to-one function.f(x) = 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics
For the given functions f and g, find the requested composite function.f(x) = 4x2 + 5x + 4, g(x) = 5x - 5;
Find the function g ? f.
A. 4x2 + 25x + 15 B. 4x2 + 5x - 1 C. 20x2 + 25x + 15 D. 20x2+ 25x + 25
Mathematics
Find the unknown length in the right triangle. Simplify the answer if necessary.
A. 2
B. 4
C. 2
D. 2
Mathematics
Add. Do not use a number line except as a check.-33 + (52)
A. 19 B. 85 C. -19 D. -85
Mathematics