Simplify.(
+ 3)(
- 3)
A. 5 - 2
B. 2
C. 14
D. -4
Answer: D
Mathematics
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Find the largest open interval where the function is changing as requested.Increasing y = (x2 - 9)2
A. (-3, 3) B. (-3, 0) C. (3, ?) D. (-?, 0)
Mathematics
Find the y-intercepts for the parabola whose equation is given. If the y-intercepts are irrational, round your answers to the nearest tenth.y = x2 + 4x
A. y-intercept (0, 0) B. No y-intercept C. y-intercept (0, 4) D. y-intercepts (0, 0) and (-4, 0)
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Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation.Add.8x9 - 6x8 + 2x7 - 6
A. 11x9 + 3x8 + 9x7 + 3 B. 3x9 + 3x8 + 17x7 - 3 C. 23x48 + 3 D. 11x18 + 3x16 + 9x14 + 3
Mathematics