Simplify.Rationalize the numerator. 
A. 
B. 
C. 
D. 
Answer: C
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Multiply.473 × 8
A. 3684 B. 3794 C. 3884 D. 3784
Convert the equation to the standard form for a hyperbola by completing the square.x2 - y2 + 4x - 4y - 1 = 0
A. (y + 2) 2 - (x + 2) 2 = 1
B. 
- 
= 1
C. (x + 2) 2 - (y + 2) 2 = 1
D. (x + 2) 2 + (y + 2) 2 = 1
Specify the center and radius of the circle.(x + 8)2 + (y + 7)2 = 121
A. center: (7, 8); radius: 121 B. center: ( -7, -8); radius: 121 C. center: (-8, -7); radius: 11 D. center: (8, 7); radius: 11
Write a matrix to display the information.At a store, Sam bought 4 batteries, 24 60-watt light bulbs, 45 100-watt light bulbs, 7 picture-hanging kits, and a hammer. Jennifer bought 6 batteries, 4 100-watt light bulbs, and a package of tacks. Write the information as a 2 × 6 matrix.
A. 
B. 
C. 
D. 