Solve the equation by completing the square.2x2 + 12x = -5
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Answer: B
Mathematics
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Find the length of the indicated portion of the curve.r(t) = (3 + 2t)i + (3 + 3t)j + (4 - 6t)k, -1 ? t ? 0
A. 8 B. 5 C. 9 D. 7
Mathematics
Sketch the graph and show all local extrema and inflection points.y = ex - 3e-x - 4x
A. Local maximum (0, -2)
Local minimum (ln 3, 2 - 4 ln 3)
No inflection point
B. Local maximum (0, -2)
Local minimum (ln 3, 2 - 4 ln 3)
Inflection point 
C. Local minimum (2, -1)
No inflection point
D. Local minimum 
No inflection point
Mathematics
Multiply.(x + 11)(x3 + 9x - 4)
A. x4 + 11x3 + 9x2 + 95x - 44 B. x4 + 11x3 + 9x2 + 103x + 44 C. x4 + 9x2 - 4x + 11 D. x3 + 20x2 + 95x - 44
Mathematics
Solve the problem.When 5 times a number is subtracted from 7 times the number, the result is 16. Find the number.
A. 11 B. 15 C. 2 D. 8
Mathematics