Find the unit vector having the same direction as v.v = 6i
A. u = i
B. u = 
i
C. u = 6i
D. u = 36i
Answer: A
Mathematics
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Solve the problem.A circle with a radius r contains a triangle whose base passes through the center of the circle and whose height is r. Express the shaded area in terms of r and ? as a completely factored polynomial.
A. ?(r + 1)2 B. r2(? - 1) C. ?(r - 1)2 D. r2(? + 1)
Mathematics
Determine whether the three points are collinear.(0, -9), (7, -7), (-7, -11)
A. Yes B. No
Mathematics
Find the constant of proportionality k, and write the linear function relating the two variables.Suppose that Q varies directly with x and inversely with y. When Q = 3, x = 45 and y = 135.
A. k = 9; Q = 
B. k = 9; Q = 
C. k = 
; Q = 
D. k = 15; Q = 
Mathematics
Divide, if possible. If a quotient is undefined, state so.
A. -8 B. -9 C. -10 D. 9
Mathematics