Use a calculator to approximate the expression to three decimal places. If the expression is not a real number, state this.

A. 3.162
B. -3.162
C. -1.464
D. not a real number


Answer: D

Mathematics

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Write the first five terms of the arithmetic sequence with the given term and common difference.a1 = 0.3, d = -1.1

A. 1.4, 2.5, 3.6, 4.7, 5.8 B. -0.8, -1.9, -3, -4.1, -5.2 C. 0.3, -0.8, -1.9, -3, -4.1 D. 0.3, 1.4, 2.5, 3.6, 4.7

Mathematics

Graph the ellipse and locate the foci.16x2 + 4y2 = 64

A. foci at (0, 2) and (0, -2)

B. foci at (2, 0) and (-2, 0)

C. foci at (, 0) and (-, 0)

D. foci at (2, 0) and (-2, 0)

Mathematics

Factor by grouping.2y3 + 8y2 - 12y2 - 48y

A. 2y(y + 4)(y - 6) B. (y + 4)(y - 6) C. 2y(y - 4)(y + 6) D. (y + 4)(2y2 - 12y)

Mathematics

Find the quotient and the remainder.x4 + 81 divided by x - 3

A. x3 + 3x2 + 9x + 27; remainder 0 B. x3 - 3x2 + 9x - 27; remainder 162 C. x3 + 3x2 + 9x + 27; remainder 81 D. x3 + 3x2 + 9x + 27; remainder 162

Mathematics