Multiply and simplify. Assume no radicands were formed by raising negative numbers to even powers.
A. x6y5
B. x6y6
C. x6y5
D. x6y7
Answer: C
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Solve the problem.A private shipping company will accept a box for domestic shipment only if the sum of its length and girth (distance around) does not exceed 90 in. Suppose you want to mail a box with square sides so that its dimensions are 
and it's girth is 
What dimensions will give the box its largest volume?
A. 15 in. x 15 in. x 30 in. B. 30 in. x 15 in. x 30 in. C. 20 in. x 20 in. x 15 in. D. 15 in. x 15 in. x 75 in.
Solve the logarithmic equation.log x + log(x + 1) = log 72
A. {8}
B. {9}
C. 
D. {9, -8}
Evaluate without using a calculator.
?
?
A. 
B. 
C. 
D. 
E. 
Find the exact value of the indicated trigonometric function of the angle ? in the figure. Rationalize the denominator where necessary.Find cos ?.
A. 
B. 
C. 
D. 