Determine if the sequence is arithmetic. If the sequence is arithmetic, find the common difference.a1 = -3, an = 3an - 1 - 7
A. no
B. yes, -7
C. yes, 7
D. yes, 3
Answer: A
Mathematics
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Use implicit differentiation to find dy/dx and d2y/dx2.y2 - x2 = 6
A. 
= 
; 
= 
B. 
= 
; 
= 
C. 
= - 
; 
= 
D. 
= 
; 
= 
Mathematics
Solve.
= 9 - 
A. 2
B. 
C. 1
D. 
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 
B. 
C. 
D. 
Mathematics
Find an equation of the parabola described.Focus at (20, 0); directrix the line x = -20
A. y2 = 80x B. x2 = 80y C. y2 = 20x D. y2 = -80x
Mathematics