Graph the solution set of the system of inequalities or indicate that the system has no solution.

A.

B.

C.

D. No solution


Answer: A

Mathematics

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Solve the problem.The following figure shows the shape and dimensions of a small dam. Assuming the water level is at the top of the dam, find the total force on the face of the dam. 

A. 52,920,000 N B. 705,600 N C. 4,410,000 N D. 21,168,000 N

Mathematics

Determine if the sequence is decreasing or nondecreasing and if it is bounded or unbounded from above.an = 

A. Nondecreasing; bounded B. Decreasing; bounded C. Decreasing; unbounded D. Nondecreasing; unbounded

Mathematics

Write as a decimal.98.9%

A. 0.0989 B. 0.989 C. 0.00989 D. 9.89

Mathematics

Solve the problem.The current I, in amperes, flowing through a particular ac (alternating current) circuit at time t seconds is  I = 110 sin (50?t)What is the period and amplitude of the current?

A. period =  second, amplitude = 50
B. period = 50? seconds, amplitude = 
C. period =  second, amplitude = 300
D. period =  second, amplitude = 110

Mathematics