Without graphing, determine whether the graph of the quadratic function opens up or opens down.f(x) = x2 + 2
A. opens down
B. opens up
Answer: B
Mathematics
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Use implicit differentiation to find d2y/dx2.x2 - y3 = 8
A. 
B. 
C. 
D. 
Mathematics
Find the principal unit normal vector N for the curve r(t).r(t) = (t2 + 8)j + (2t - 1)k
A. N(t) = - 
j + 
k
B. N(t) = - 
j + 
k
C. N(t) = 
j - 
k
D. N(t) = 
j - 
k
Mathematics
Provide an appropriate response.The "Simpson" sum is based upon the area under a ? .
A. triangle B. parabola C. rectangle D. trapezoid
Mathematics
Simplify by using the order of operations.
2 ? 
2
A. 
B. 
C. 
D. 
Mathematics