Factor completely. If the polynomial cannot be factored, write "prime."8x3 - 216y3
A. 8(x - 3y)(x2 + 9y2)
B. 8(x - 3y)(x2 + 3xy + 9y2)
C. (8x - 3y)(x2 + 3y + 72y2)
D. 8(x + 3y)(x2 - 3xy + 9y2)
Answer: B
Mathematics
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Write the fraction as a decimal.
A. 78.5 B. 0.790 C. 0.785 D. 7.85
Mathematics
The function f is one-to-one. Find its inverse.f(x) = x3 + 2
A. f-1(x) = 
B. f-1(x) = 
- 2
C. f-1(x) = 
+ 2
D. f-1(x) = 
Mathematics
Perform the indicated operations.(3x2 - 8x + 4) - (x2 - 3x + 2) + (8x2 + 5)
A. -6x2 - 11x + 11 B. 10x2 - 5x + 11 C. 10x2 - 5x + 7 D. 10x2 - 11x + 7
Mathematics
Find the perimeter. Use 3.14 for ? when needed.
A. 99 in. B. 228 in. C. 70 in. D. 94 in.
Mathematics