Solve.In how many different ways can 7 people line up for play tickets?
A. 823,543
B. 7
C. 5040
D. 1
Answer: C
Mathematics
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Determine whether or not the equation is quadratic.x2 = (x - 2)2
A. Quadratic. B. Not quadratic.
Mathematics
Divide.(y2 + 6y + 9) ÷ (y + 3)
A. y - 3
B. y2 + 3
C. y + 3
D. y + 
Mathematics
Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(-2
, -2
)
A. (4, 135°), (-4, 225°)
B. (2
, 225°), (-2
, 45°)
C. (2
, 135°), (-2
, 225°)
D. (4, 225°), (-4, 45°)
Mathematics
Evaluate the expression without using a calculator.ln 
A. -
B. 
C. -4
D. 4
Mathematics