Find the product.(7y - 9)(49y2 + 63y + 81)
A. 343y3 - 729
B. 343y3 + 567y2 - 729
C. 49y3 + 729
D. 343y3 + 729
Answer: A
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Find a set of polar coordinates for the point for which the rectangular coordinates are given.(-6, -6
)
A. 
B. 
C. 
D. 
Express the set in roster form.{x|x is an integer greater than -6}
A. {-7, -8, -9, . . .} B. {-5, -4, -3, . . .} C. {-7, -8, -9} D. {-5, -4, -3, -2}
Multiply or divide, as indicated. Simplify the answer.
A. -2i B. -2 C. 2 D. 2i
Solve the problem.The sum of the measures of the angles of any triangle is 180°. In triangle ABC, angles A and B have the same measure, while the measure of angle C is 30° larger than each of A and B. What are the measures of the three angles?
A. A and B: 60°; C: 60° B. A and B: 50°; C: 80° C. A and C: 60°; B: 60° D. A and B: 80°; C: 50°