Evaluate. The differential is exact.
A. 2
B. -2
C. 0
D. 1
Answer: C
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Solve.A rectangular metal sheet has an area of 156 square centimeters. Four squares with sides 2 cm are cut from the corners of the sheet, and the edges are bent upward to form an open box with a volume of 72 cubic centimeters. Find the dimensions of the box.
A. Length = 9 cm; width = 8 cm; height = 2 cm B. Length = 9 cm; width = 2 cm; height = 8 cm C. Length = 11 cm; width = 10 cm; height = 2 cm D. Length = 13 cm; width = 12 cm; height = 2 cm
Determine whether the sequence converges or diverges, and, if it converges, find 
an.an = 1 + (-1)n + (-1)n(n+1)
A. 3 B. 1 C. 0 D. Diverges
Find the current yield. Round to the nearest tenth of a percent.You invested $6,775 in 125 shares of stock. During the following year, the company paid dividends of $2.25 per share.
A. 2.4% B. 0.4% C. 24.1% D. 4.2%
Simplify the algebraic expression.8.2a + 9.9b - 1.3a - 2.3b
A. 6.9a + 7.6b B. -6.9a + 7.6b C. 9.5a + 12.2b D. 6.9a + 12.2b