Solve the equation by completing the square.6x2 + 12x + 5 = 0

A.  
B.
C.  
D.


Answer: D

Mathematics

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Graph the equation by plotting points.y = x + 6

A.

B.

C.

D.

Mathematics

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

Mathematics

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

Mathematics

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:  = ky, 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. = 
B. = 
C. = 
D. = 

Mathematics