Find the radian measure of angle ?, if ? is a central angle in a circle of radius r, and ? cuts off an arc of length s.
?
cm, 
cm
?
A. 
B. 4
C. 
D. 
E. 5
Answer: E
Mathematics
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Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(3
, 9)
A. (6
, 30°), (-6
, 330°)
B. (6
, 30°), (-9
, 330°)
C. (6
, 60°), (-6
, 240°)
D. (6
, 300°), (-6
, 60°)
Mathematics
Find a ? b.a = 7i - 9j, b = 3i + 5j
A. 
B. -66
C. 
D. -24
Mathematics
Find the absolute value.
A. 6
B. -6
C. -7
D. 7
Mathematics
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics