Solve the inequality and write the solution set using interval notation; then graph the solution set on a number line. x2 - 7x ? -12

A. (-?3? [4?)

B. [4?)

C. (-?3]

D. [34]


Answer: A

Mathematics

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Solve the problem.A dog toy is constructed in the shape of a cylinder with a length of 6.6 in. The cylinder has a hemisphere at each end. The diameter is 2.2 in. Find the total volume.

A. 140 in.3 B. 28 in.3 C. 25 in.3 D. 31 in.3

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Graph the polynomial function. f(x) = x3 + 5x2 - x - 5

A.

B.

C.

D.

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Solve.The weight of a liquid varies directly as its volume V. If the weight of the liquid in a cubical container  on a side is 81 g, find the weight of the liquid in a cubical container 4 cm on a side.

A. 192 g B. 12 g C. 52 g D. 64 g

Mathematics

Provide an appropriate response.Describe the elements of a 4 × 4 identity matrix.

A. The matrix has zeroes on the main diagonal. All other elements are ones. B. All elements of the matrix are ones. C. The matrix has ones on the main diagonal and zeroes below the main diagonal. D. The matrix has ones on the main diagonal, and all other elements are zero.

Mathematics