Solve.x2 - 6x + 13 = 0
A. 3 ± 2i
B. -3 ± 2i
C. 6 ± 4i
D. 5, 1
Answer: A
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Use a factor pair table to find all of the factor pairs of each number.63
A. 1 and 63; 3 and 21; 7 and 9 B. 1 and 63; 2 and 36; 3 and 21; 7 and 9 C. 3 and 63; 5 and 21; 7 and 11; 9 and 9 D. 1 and 63; 3 and 21; 5 and 11; 7 and 9
Solve the quadratic equation by completing the square.x2 - 10x + 24 = 0
A. x = 20, x = 4
B. x = 
, x = 
C. x = -6, x = -4
D. x = 6, x = 4
A lunchroom has a machine with 4 kinds of sandwiches, a machine with 2 kinds of soda, a machine with both white and chocolate milk, and a machine with 4 kinds of ice cream. How many different lunches can be chosen? (Consider a lunch to be one sandwich, one drink, and one ice cream.)
Fill in the blank(s) with the appropriate word(s).
Use Pascal's triangle to expand the binomial.(4x - 3y)3
A. 16x3y - 24x2y2 + 9xy3 B. 16x3y - 12x2y2 + 9xy3 C. 64x3 - 144x2y + 108xy2 - 27y3 D. 64x3 - 48x2y + 36xy2 - 27y3