Check the addition. If the answer is incorrect, find the correct answer.1309

A. Correct
B. Incorrect; should be 1419
C. Incorrect; should be 1219
D. Incorrect; should be 1319


Answer: D

Mathematics

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Express the number in scientific notation.892,784,000,000

A. 8.92784 × 1011 B. 8927.84 × 108 C. 892.784 × 109 D. 8.92784 × 109

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Solve for x:

5 3 ÄÄ + Ä = 10 3x 3 a. 23 x = ÄÄ 30 b. 21 x = ÄÄ 25 c. 5 x = Ä 9 d. 5 x = ÄÄ 27 e. 7 x = ÄÄ 30

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Write the algebraic expression described. Simplify if possible.A 46-centimeter piece of rope is cut into two pieces. If one piece is z centimeters long, express the other length as an algebraic expression in z.

A. (46 - z) cm B. (46 - 2z) cm C. (z - 46) cm D. (z + 46) cm

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Rewrite the expression in terms of sin ? and cos ?.

A. sec ? B. cos ? C. csc ? D. sin ?

Mathematics