Solve the equation by completing the square.6x2 + 12x + 5 = 0
A. 
B. 
C. 
D. 
Answer: D
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Graph the equation by plotting points.y = 
x + 6
A. 
B. 
C. 
D. 
Solve the problem in the right triangle ABC with the standard labeling.Find b if c = 55.2 and ? = 50.19°
A. 55.2 B. 50.19 C. 42.4 D. 35.3
Solve the problem.A radio telescope has the shape of a parabolic dish, whose cross section can be modeled by 
where -94 ? y ? 94 and the units are feet. Find the depth d of the dish.
A. 8836 ft B. 3290 ft C. 35 ft D. 1225 ft
Solve the problem.Suppose an isolated island has a native population of 8000 and a person from a visiting ship introduces a disease which has an infection rate of 0.00005. Assume that the rate of spread of the disease satisfies the following logistic equation: 
= k
y, where N is the size of the population and y is the number infected at time t.Write an equation for the number of natives who remain uninfected after t days.
A. y = 
B. y = 
C. y = 
D. y = 