Solve the equation.
x - 4 = 1
A. {6}
B. {-10}
C. {10}
D. {-6}
Answer: C
Mathematics
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Factor by grouping.2y - 8 + xy - 4x
A. (x - 4)(y + 2) B. (y - 4x)(2 + x) C. (y - 4)(2 + x) D. (x - 4)(2y + x)
Mathematics
Find the length of the missing side in the right triangle.
a = 12, b = 16; find c
A. 400
B. 112
C. 4
D. 20
Mathematics
Simplify the expression. Assume that all variables represent nonnegative numbers.-8
- 8
+ 2
A. -8
B. -3
C. -46
D. 3
Mathematics
Add or subtract as indicated. Express the answer as a single polynomial in standard form.(4x2 - 9x - 2) + (8x2 + 3x - 6)
A. 12x2 + 6x - 8 B. 12x2 - 6x - 8 C. 12x2 - 6x + 8 D. 6x2 + 7x - 15
Mathematics