Multiply.(x - 11)(x - 10)
A. x2 - 21x + 110
B. x2 - 21x - 21
C. x - 21x + 110
D. x2 - 24x + 110
Answer: A
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If the equation represents a hyperbola, find the center, foci, and asymptotes. If the equation represents an ellipse, find the center, vertices, and foci. If the equation represents a circle, find the center and radius. If the equation represents a parabola, find the focus and directrix. x2 + y2 - 6x - 8y = 24
A. (-4, -3); r = 49 B. (4, 3); r = 7 C. (3, 4); r = 7 D. (-3, -4); r = 49
Construct a truth table for the statement.(q ? p) ? ~ q
A. 
B. 
C. 
D. 
Write the expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the expression.cos2 22.5° - sin2 22.5°
A. 
B. - 
C. - 
D. 
Find the least common multiple (LCM) of the list of numbers.30, 80, 70
A. 840 B. 240 C. 560 D. 1680