Solve the quadratic equation by the method of your choice.2x2 - x - 1 = 0

A.
B.
C.
D.


Answer: A

Mathematics

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Convert between English and Metric System of Units. 40 m =  ft (Round to the nearest tenth.)

A. 12.1 B. 120 C. 13.3 D. 132.0

Mathematics

Provide an appropriate response.A mill is one hundredth of a dollar.

A. True B. False

Mathematics

Determine the family of angles for which the following angle belongs, sketch the angle, and then determine the angle of least positive measure, ?C, coterminal with the given angle.? = -1215°

A.  family; ?C = 240°

B. quadrantal family; ?C = 180°

C. quadrantal family; ?C = 270°

D.  family; ?C = 225°

Mathematics

Use the even-odd properties to find the exact value of the expression. Do not use a calculator.sec 

A. 2
B. - 
C. -2
D.  

Mathematics