Use a grapher to find the vertex, rounding to the nearest hundredth when necessary.f(x) = -5x2 - 4x + 5
A. (0.4, 5.8)
B. (2, 5.8)
C. (-0.4, 5.8)
D. (-0.4, 4.2)
Answer: C
Mathematics
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Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
A. 0.05 B. 0.5 C. 3 D. 0.1
Mathematics
Solve the problem. Round to the nearest tenth when necessary.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height h of the outside walls.A = 9 m
A. 93 m B. 69 m C. 9.6 m D. 3 m
Mathematics
Solve.One-half serving of soy sauce contains 215 milligrams of sodium. How many grams of sodium from soy sauce are included in an egg-foo-young dish made from 2 servings of soy sauce? Round to the nearest tenth of a gram.
A. 0.1 g B. 43.0 g C. 0.9 g D. 107.5 g
Mathematics
Solve.56 ? y = -34.72
A. -21.28 B. -0.062 C. -6.2 D. -0.62
Mathematics