Write the opposite of the polynomial and simplify your result.2x2 + 8x - 7
A. -2x2 - 8x - 7
B. 2x2 - 8x + 7
C. -2x2 - 8x + 7
D. -2x2 + 8x + 7
Answer: C
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Subtract.(3.9x3 - 7.7x2 - 3) - (8.1x3 - 2.3x2 + 1)
A. -4.2x3 - 5.4x2 - 4 B. -4.2x3 - 10x2 - 4 C. 12x3 - 5.4x2 - 4 D. -4.2x3 - 5.4x2 + 4
Write in radical form. Assume all variables represent positive real numbers.7x1/5
A. 
B. 
C. 7
D. 
Find the median.Number of customers: 277, 399, 146, 451, 149, 226
A. 226 B. 235.5 C. 277 D. 251.5
Give two parametric representations for the equation of the parabola.y = x2 + 4x + 12
A. x = t, y = t2 + 4t + 12 for t in (-?, ?); x = t + 2, y = t2 + 8 for t in (-?, ?) B. x = t, y = t2 - 4t - 12 for t in (-?, ?); x = t + 2, y = t2 + 8 for t in (-?, ?) C. x = t, y = t2 + 4t + 12 for t in (-?, ?); x = t - 2, y = t2 + 8 for t in (-?, ?) D. x = t, y = t2 + 4t + 12 for t in (-?, ?); x = t - 2, y = t2 - 8 for t in (-?, ?)