Perform the indicated operation(s), whenever possible.Let A =  and B = . Find A - B.

A.

B.

C.

D.


Answer: C

Mathematics

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Perform the operation and write the result in standard form. ? ?

A.
B.
C.
D.
E.

Mathematics

Find the vertices and locate the foci for the hyperbola whose equation is given. -  = 1

A. vertices: (-10, 0), (10, 0)  
foci: (- , 0) , (, 0)
B. vertices: (-9, 0), (9, 0)  
foci: (- , 0) , (, 0)
C. vertices: (-9, 0), (9, 0)  
foci: (-10, 0), (10, 0)
D. vertices: (0, -9), (0, 9)  
foci: (- , 0) , (, 0)

Mathematics

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

A. 1 B. -1 C. 0 D. undefined

Mathematics

Solve the problem.A pendulum bob swings through an arc 70 inches long on its first swing. Each swing thereafter, it swings only 70% as far as on the previous swing. How far will it swing altogether before coming to a complete stop?

A. 200 inches B. 233 inches C. 117 inches D. 100 inches

Mathematics