Determine the number to add to make each expression a perfect square trinomial.x2 - 10x
A. 25
B. -25
C. 5
D. -5
Answer: A
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Use a calculator to evaluate the expression, or state that the value does not exist. Round the answer to four decimal places when necessary.tanh-1 4
A. 1.0007 B. 0.2554 C. does not exist D. 0.9993
Give two parametric representations for the equation of the parabola.y = (x - 5)2 + 10
A. x = t, y = (t + 5)2 + 10 for t in (-?, ?); x = t + 5, y = t2 + 10 for t in (-?, ?) B. x = t, y = (t - 5)2 + 10 for t in (-?, ?); x = t - 5, y = t2 + 10 for t in (-?, ?) C. x = t, y = (t + 5)2 + 10 for t in (-?, ?); x = t - 5, y = t2 + 10 for t in (-?, ?) D. x = t, y = (t - 5)2 + 10 for t in (-?, ?); x = t + 5, y = t2 + 10 for t in (-?, ?)
Solve for x.
> 6
A. -13 < x < 17 B. x < -17 or x > 13 C. x < -13 or x > 17 D. -17 < x < 13
Multiply.(8x - 3y)2
A. 64x2 - 48xy + 9y2 B. 8x2 - 48xy + 9y2 C. 64x2 + 9y2 D. 8x2 + 9y2