Find the dot product, u ? v, for the given vectors.u = 
, v = 
A. -74
B. -62
C. 52
D. 106
Answer: A
Mathematics
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Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Two numbers total 4, and their difference is 20. Find the two numbers.
A. 12 and - 8 B. 4 and 2 C. 2 and - 18 D. 3 and 1
Mathematics
Find the absolute value.
A. 4 B. 0 C. -2 D. 2
Mathematics
Provide an appropriate response.Let f(x) = 9(2x), and consider the sequence f(1), f(2), f(3), . . . . Is this a geometric sequence, and if so, what is the common ratio?
A. Yes; 2 B. Yes; x C. Yes; 9 D. No
Mathematics
The pair of triangles is similar. Find the missing side n. Round to the nearest tenth when necessary.
A. 35 m B. 26 m C. 20 m D. 28 m
Mathematics