Simplify the expression. Assume that all variables are positive.(x6y9)1/3
A. x18y27
B. x3y2
C. x2y3
D. 3x6y9
Answer: C
Mathematics
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Solve the problem.Find the sum of the infinite series 1 + 8r + 5r2 + 8r3 + r4 + 8r5 + 5r6 + 8a7 + r8 ... for those values of r for which it converges.
A. 
B. 
C. 
D. 
Mathematics
Factor completely. If the polynomial is prime, state this.x2y2 - 4
A. (xy + 4)(xy - 4) B. (xy + 2)(xy - 2) C. (xy - 2)2 D. (x2y2 + 2)(x2y2 - 2)
Mathematics
Find the exact value of the trigonometric function. Do not use a calculator or tables.tan 
A. - 
B. -1
C. - 
D. 1
Mathematics
Provide an appropriate response.Make a simple approximate sketch of a graph that corresponds to the following function of time. The height of the water in a washing machine during the time someone does a load of laundry 
A. 
B. 
C. 
D. 
Mathematics