Simplify. Assume that no radicands were formed by raising negative quantities to even powers.

A. 25xy6
B. 5x2y3
C. 5x
D. 5xy3

Answer: D

Mathematics

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Solve the problem.A barge takes 4 hours to move (at a constant rate) downstream for 40 miles, helped by a current of 3 miles per hour. If the barge's engines are set at the same pace, find the time of its return trip against the current.

A. 7 hours B. 4 hours C. 10 hours D. 80 hours

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Mathematics

Evaluate the following expression using a unit circle.cos 

A. -  
B. - 
C.  
D.  

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Mathematics

Determine if the equation is linear.3x + 4 = x - 5

A. Linear B. Not linear

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Mathematics

Translate the statement into an equation. Let x represent the unknown number. DO NOT SOLVE.If 3 times a number is added to -7, the result is equal to 10 times the number.

A. 4x + (-7) = 10x B. 13x - 10x = 7 C. 3x + (-7) = 10x D. 10(3x - 7) = -7

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Mathematics