Find a rectangular equation for the plane curve defined by the parametric equations.x = 
, y = 
, for t in (4, ?)
A. y = 1 - 4x2, x in (0, ?)
B. y = 
, x in (0, ?)
C. y = 1 + 4x2, x in (0, ?)
D. y = 4 + x2, x in (0, ?)
Answer: C
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Simplify the following rational expression.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Graph the function. Give the domain and range.f(x) = log1/5(x + 4)
A. domain: (-4, ?); range: (-?, ?)
B. domain: (-?, ?); range: (0, ?)
C. domain: (-?, ?); range: (4, ?)
D. domain: (0, ?); range: (-?, ?)
Solve.Jeff takes 5 hr longer to build a fence than it takes Bill. When they work together, it takes them 6 hours. How long would it take Bill to do the job alone?
A. 10 hours B. 11 hours C. 12 hours D. 9 hours
Add or subtract. Then simplify by collecting like radical terms, if possible. Assume that no radicands were formed by raising negative numbers to even powers.
+ 7
+ 5
A. 12x
B. 37x
C. 37x
D. 12x