Factor the polynomial completely.x3 - 125
A. (x + 5)(x2 - 5x + 25)
B. (x - 5)(x2 + 25)
C. (x + 125)(x2 - 1)
D. (x - 5)(x2 + 5x + 25)
Answer: D
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Solve the problem.What region in the xy-plane minimizes the value of 
?R
A. The ellipse 49x2 + 100y2 = 1
B. The ellipse 100x2 + 49y2 = 4900
C. The ellipse 
+ 
= 1
D. The ellipse 
+ 
= 1
Divide using long division.
A. 8r2 - 2r - 5
B. 8r2 + 2r + 5
C. r2 + 5r + 2
D. 8r2 + 2r + 
Indicate to which set(s) the number belongs from the following choices: natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers. The numbers may belong to more than one set.0.2626...
A. irrational numbers, real numbers B. rational numbers, real numbers C. real numbers D. natural numbers, rational numbers, real numbers
Multiply or divide.-16 ÷ (-4)
A. 5 B. -4 C. 3 D. 4