Use factoring by grouping to solve the equation.x3 + 2x2 - 16x - 32 = 0
A. -4, -2, 2
B. 2, -4, 4
C. -2, 2, 4
D. -2, -4, 4
Answer: D
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Find the length of the indicated portion of the curve.r(t) = (1 + 3t)i + (1 + 4t)j + (2 - 2t)k, -1 ? t ? 0
A. 
B. 2
C. 5
D. 
Find Dxy.y = tanh 3x sech x
A. 3 sech23x sech x - tanh 3x tanh2x B. 3 sech23x sech x - tanh 3x sech x tanh x C. 3 sech 3x tanh 3x sech x - tanh 3x sech x tanh x D. 3 sech33x - tanh23x sech x
Make an approximate conversion as indicated. Round to the nearest tenth. The precise value of your approximation will depend on the conversion path that you choose.61 kg = 
lb
A. 64.7 B. 134.2 C. 27.5 D. 154.9
Provide an appropriate response.Find equations for the tangents to the curves y = tan 2x and y = - tan (x/2) at the origin. How are the tangents related?
What will be an ideal response?