Find the mean for the grouped data. Round to the nearest tenth.

A. 8.9
B. 8.7
C. 13.5
D. 6.7


Answer: B

Mathematics

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Determine if the given polar coordinates represent the same point.(5, ?/4), (-5, -?/4)

A. No B. Yes

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Write the set in set builder notation.The odd natural numbers less than 53.

A. {x ? N?x is odd and x ? 51} B. {x ? N?x < 53} C. {x ? N?x < 52} D. {x ? N?x is odd and x ? 53}

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Solve the right triangle ABC with C = 90°. Your answer should give an angle in decimal degrees when given an angle in decimal degrees and in degrees and minutes when given an angle in degrees and minutes. Use the rules for significant digits.A = 61°3', c = 5.577 ft

A. B = 28°57', a ? 4.880 ft, b ? 2.700 ft B. B = 28°57', a ? 4.88 ft, b ? 2.70 ft C. B = 28°57', a ? 4.88 ft, b ? 2.7 ft D. B = 29°57', a ? 4.880 ft, b ? 2.700 ft

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Solve the problem.A ceramics workshop makes wreaths, trees, and sleighs for sale at Christmas. A wreath takes 3 hours to prepare, 2 hours to paint, and 8 hours to fire. A tree takes 15 hours to prepare, 3 hours to paint, and 4 hours to fire. A sleigh takes 4 hours to prepare, 14 hours to paint, and 7 hours to fire. If the workshop has 109 hours for preparation time, 83 hours for painting, and 96 hours for firing, how many of each can be made?

A. 7 wreaths, 6 trees, 5 sleighs B. 4 wreaths, 6 trees, 5 sleighs C. 6 wreaths, 5 trees, 4 sleighs D. 5 wreaths, 4 trees, 6 sleighs

Mathematics