Find the product.8xy(2x + 3y)

A. 40x2y
B. 10x2y + 11xy2
C. 16x2y + 24xy2
D. 40x2y2


Answer: C

Mathematics

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Use the Midpoint Formula to estimate the sales of Big Lots, Inc. in 2005, given the sales in 2003 and 2007. Assume that the sales followed a linear pattern.Big Lots YearSales (in millions)2003417420074700

A. $4700 million B. $4457 million C. $4174 million D. $4437 million E. $4447 million

Mathematics

Find the required quantity given the wire that lies along the curve r and has density ?.Moment of inertia Iz about the z-axis, where r(t) = (5 cos t)i + (5 sin t)j, 0 ? t ? 

A. Iz = 20
B. Iz = 0
C. Iz = 500
D. Iz = 500

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Solve the problem.Two angles of a triangle are 10° and 30°. What is the measure of the third angle?

A. 140° B. 320° C. 50° D. 40°

Mathematics

Determine whether the fractions are equal. and 

A. Yes B. No

Mathematics