Simplify the expression. Assume that all variables are positive.(r1/7 s1/7)2
A. r1/14s1/14
B. r2/7s2/7
C. r1/49s1/49
D. r2s2
Answer: B
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Sketch the graph of the function over the interval 0 ? x ? 2?.y = -3 cos 
A. 
B. 
C. 
D. 
Evaluate the exponential expression.53
A. 8 B. 4 C. 15 D. 125
Use transformations to graph the function. Determine the domain, range, and horizontal asymptote of the function.f(x) = 3-x + 4
A. domain: (-?, ?); range: (4, ?)
horizontal asymptote: y = 4
B. domain: (-?, ?); range: (4, ?)
horizontal asymptote: y = 4
C. domain: (-?, ?); range: (3, ?)
horizontal asymptote: y = 3
D. domain: (-?, ?); range: (3, ?)
horizontal asymptote: y = 3
Factor completely. If the polynomial is prime, then state this as your answer.x3(t3 - 125) + y3(t3 - 125)
A. (x + y)(x2 - xy + y2)(t + 5)(t2 - 5t + 25) B. (x + y)(x2 - xy + y2)(t - 5)(t2 + 5t + 25) C. (x + y)(x2 - xy + y2)(t + 125)(t2 - 1) D. (x + y)(x2 - xy + y2)(t - 5)(t2 + 25)