Find the real or imaginary solutions by using the quadratic formula.x2 - x = 12

A. {1, 12}
B. {-3, -4}
C. {3, 4}
D. {-3, 4}


Answer: D

Mathematics

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Determine whether the graph is a complete graph.

A. Yes B. No

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Solve the problem.The focal length f of a lens with index of refraction n is  = (n - 1) where R1and R2 are the radii of curvature of the front and back surfaces of the lens. Express f as a rational expression.

What will be an ideal response?

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Divide. Write the answer in lowest terms and as a whole or mixed number where possible.

A. 2
B. 6
C.
D. 3

Mathematics

Write the first four terms of the sequence.an = 

A. a1 = 1, a2 = a3 = a4 = 
B. a1 = 1, a2 = a3 = a4 = 
C. a1 = a2 = a3 = a4 = 
D. a1 = 5a2 = a3 = a4 = 

Mathematics