Use the figure provided to find the requested expression.In ?ABC, vectors u and w are determined by the sides shown, where P is the midpoint of side BC. Find an expression for u in terms of v and w.
A. u + w
B. w - u
C. 2v - w
D. u - 2w
Answer: C
Mathematics
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Find the unit tangent vector of the given curve.r(t) = 4t3i - 3t3j + 12t3k
A. T(t) = 
i - 
j - 
k
B. T(t) = 
i - 
j + 
k
C. T(t) = 
i + 
j + 
k
D. T(t) = 
i - 
j + 
k
Mathematics
Provide an appropriate response.Solve the following inequality: x + 6 < 8 < 2x + 7
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the equation.Solve tan ? = 0 for ?, where 0° ? ? ? 90°.
A. 90° B. 0° C. 30° D. 60°
Mathematics
Solve.Frank can type a report in 3 hours and James takes 4 hours. How long will it take the two of them typing together?
A. 
hr
B. 12 hr
C. 
hr
D. 4 hr
Mathematics