Find the equation of the axis of symmetry of the parabola.f(x) = x2 + 1

A. x = 1
B. x = -1
C. x = 0
D. y = 1

Answer: C

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) = (t - 5)i + (ln(sec t) - 4)j + 10k, -?/2 < t < ?/2; normal plane at t = 8?.

A. x = -8? - 5 B. x = 5 - 8? C. x = 8? + 5 D. x = 8? - 5

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Mathematics

Provide an appropriate response.Find the perimeter and the area of the given figure. Use the formulas P = 2(b + s) and A = bh.

A. 72 in.; 40 in2 B. 40 in.; 72 in2 C. 40 in.; 96 in2 D. 36 in.; 72 in2

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Mathematics

Solve the system, using Cramer's rule, if possible. 7x + 6y -  z =  14  x - 4y + 6z =  34-8x +  y +  z =  -9

A. {(-2, 1, 4)} B. ? C. {(2, 6, 1)} D. {(2, 1, 6)}

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Mathematics

Find the integral.

A. x4 - ln  + C
B. x4 + ln  + C
C. x4 - ln  + C
D. x4 + ln  + C

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Mathematics