Find the LCD of the list of fractions.

A. 9
B. 7
C. 63
D. 16


Answer: C

Mathematics

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Solve the problem.A swimming pool has the shape of a box with a base that measures 28 m by 13 m and a depth of 3.5 m. How much work is required to pump the water out of the pool when it is full?

A. 21,849,100 J B. 81,934,125 J C. 2,229,500 J D. 43,698,200 J

Mathematics

Find the limit, if it exists. 

A. 3x2 + 3xh + h2 B. 0 C. 3x2 D. Does not exist

Mathematics

Use a graphing utility to solve the system of equations. Express the solution rounded to two decimal places.

A. x = 1.81, y = 0.28; x = 0.20, y = 2.45; x = -0.20, y = -2.45 B. x = 1.99, y = 0.13; x = 1.04, y = 1.70; x = -0.91, y = 2.95 C. x = 1.18, y = 1.03; x = 1.07, y = 1.52; x = -0.91, y = 2.88 D. no solution

Mathematics

Write the given statement as an equation.The area of an equilateral triangle varies directly as the square of the side s.

A. A = k2s
B. A = 
C. A = 
D. A = ks2

Mathematics