Find the amplitude or period as requested.Find the period of y = -3 cos 
.
A. 
B. 3
C. ?
D. 
Answer: D
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Solve the problem.A company is constructing an open-top, square-based, rectangular metal tank that will have a volume of 
What dimensions yield the minimum surface area? Round to the nearest tenth, if necessary.
A. 11.6 ft × 11.6 ft × 0.5 ft B. 4.1 ft × 4.1 ft × 4.1 ft C. 5.9 ft × 5.9 ft × 2 ft D. 5.1 ft × 5.1 ft × 2.6 ft
Solve the given applied problems involving variation.The mass of a liquid varies directly as its volume V. If the mass of the liquid in a cubical container 4 cm on a side is 128 g, find the mass of the liquid in a cubical container 5 cm on a side.
A. 10 g B. 125 g C. 250 g D. 105 g
Add the numbers using the number line.-8 + 0 
A. -8 B. -80 C. 8 D. 0
Solve.-2.5x - 3.35 = -18.1
A. -14.75 B. -8.6 C. 5.9 D. 21.45