Find the velocity vector in terms of ur and u?.r = a(7 - cos ?) and 
= 5
A. v = (5a cos ?)ur + 5a(7 - sin ?)u?
B. v = 5a(7 - cos ?)ur + (5a sin ?)u?
C. v = (5a sin ?)ur + 5a(7 - cos ?)u?
D. v = (7a sin ?)ur + 7a(5 - cos ?)u?
Answer: C
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Provide an appropriate response.Give a definition of Range.
What will be an ideal response?
Tell whether the angle is acute, right, obtuse, or straight.
A. Obtuse B. Right C. Acute D. Straight
Solve the system of equations using substitution.
A. x = -5, y = 0; x = 3, y = 4
or (-5, 0), (3, 4)
B. x = 0, y = 
; x = 0, y = - 
; x = 4, y = 
or 
, 
, 
C. x = 0, y = 
; x = 4, y = 
or 
, 
D. x = 5, y = 0; x = -5, y = 0; x = 3, y = 4
or (5, 0), (-5, 0), (3, 4)
Let A = {q, s, u, v, w, x, y, z}, B = {q, s, y, z}, 
and 
List the elements in the following set.A ? B
A. {v, x} B. {s, u, w} C. {s, u, v, w, x, z} D. {q, s, u, v, w, x, y, z} or A