Factor.3x2 - 18x + 27
A. 3(x - 3)(x - 3)
B. (x - 3)(3x - 9)
C. 3x2 - 18x + 27
D. 3(x - 9)(x + 1)
Answer: A
Mathematics
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For the curve r(t), find an equation for the indicated plane at the given value of t.r(t) = (cosh t)i + (sinh t)j + tk; rectifying plane at t = 0.
A. x = 1 B. x - y = 1 C. x - y = -1 D. x = -1
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Solve the equation.-5(x - 6) - (-6x + 7) = 9
A. x = 14 B. x = - 22 C. x = 32 D. - 14
Mathematics
Rationalize the denominator and simplify. Assume all variables represent nonnegative real numbers.
A. 2
B. 1
C. 
D. 2
Mathematics