Solve the problem.In how many ways can 8 people be lined up?
A. 8
B. 1
C. 20,160
D. 40,320
Answer: D
Mathematics
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Find the first partial derivatives of the function.
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Mathematics
Choose a strategy and solve.Originally your car cost $13,661. Four years later your car cost $19,291. How much did the price increase?
A. No increase, it was a decrease. B. $6630 C. $4630 D. $5630
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.tan ? = 
, ? < ? < 
Find cos 
.
A. 
B. - 
C. 
D. - 
Mathematics
Solve the equation using the quadratic formula.3x2 + 12x + 7 = 0
A. 
B. 
C. 
D. 
Mathematics