Use properties of multiplication to multiply.0 ? 8
A. 0
B. 80
C. 1
D. 8
Answer: A
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Find the indicated matrix.Let A = 
, B = 
, and C = 
. Find AB + BC.
A. 
B. 
C. 
D. 
A trough is in the shape of a trapezoidal prism with the ends in the shape of isosceles trapezoids.The width across the top is 8', the width across the bottom is 5' and the length is 20'. What is the outside surface area of the trough if one of the base angles of the trapezoid is 107°?
Solve the problem.A $96,000 trust is to be invested in bonds paying 6%, CDs paying 5%, and mortgages paying 8%. The bond and CD investment must equal the mortgage investment. To earn a $6370 annual income from the investments, how much should the bank invest in bonds?
A. $11,000 B. $35,000 C. $48,000 D. $13,000
Solve the problem.Jerry builds rocking chairs and porch swings and sells them a a local flea market. The lumber requirements for each type of item are summarized in the table below. 
Currently, Jerry has 200 2×4's, 55 2×6's, and 200 1×4's in stock. Rocking chairs sell for $50 and porch swings sell for $115. How many pieces of each type of lumber are left over after Jerry has built the number of chairs and swings that maximize his revenue?
A. 0 2×4's, 0 2×6's, and 10 1×4's. B. 10 2×4's, 0 2×6's, and 4 1×4's. C. 4 2×4's, 0 2×6's, and 10 1×4's. D. 10 2×4's, 0 2×6's, and 0 1×4's.