Solve.A machine produces open boxes using square sheets of plastic. The machine cuts equal-sized squares measuring 3 inches on a side from each corner of the sheet, and then shapes the plastic into an open box by turning up the sides. If each box must have a volume of 675 cubic inches, find the length of one side of the open box.

A. 15 in.
B. 21 in.
C. 18 in.
D. 14 in.


Answer: A

Mathematics

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Find the y-intercept for the graph of the quadratic function.f(x) = 2x2 - 3x - 5

A.
B. (0, 5)
C.
D. (0, -5)

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Find I when E = 24 V, XC = 3 Kê, and R = 7 Kê.

a. 2.4 mA b. 7.3 mA c. 3.4 mA d. 8.0 mA e. 3.2 mA

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Solve the problem.Triangle A has sides measuring 5 feet, 12 feet and 13 feet; triangle B has sides measuring 5 feet, 12 feet and  Which triangles, if any, are right triangles?

A. A B. B C. A and B D. neither triangle

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Determine whether the relation is also a function.{(-3, -8), (2, -4), (4, -2), (7, -6), (11, -8)}

A. yes B. no

Mathematics