Find the dot product, u ? v, for the given vectors.u = 
, v = 
A. 94
B. 46
C. 56
D. 34
Answer: D
Mathematics
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Find the center of mass of the thin rod with the given density function.Find the center of mass of a thin rod that lies along the semicircle y = 
if the density of the rod is 
.
A. 
= 0, 
= 
B. 
= 1, 
= 1
C. 
= 0, 
= 1
D. 
= 
, 
= 
Mathematics
Solve the problem.Evaluate 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Solve the equation by factoring: 3x2 - 2x - 5 = 0
Fill in the blank(s) with the appropriate word(s).
Mathematics
Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(4x + 7y)(4x - 7y)
A. 8x2 - 14y2 B. 16x2 + 56xy - 49y2 C. 16x2 - 56xy - 49y2 D. 16x2 - 49y2
Mathematics