Find dy/dx by implicit differentiation.
= x2 + y2
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the limit.
A. 7 B. 5 C. ? D. 0
Mathematics
Use Pascal's triangle to answer the question.Guess a formula for the sum of the entries in the nth row of Pascal's triangle.
A. 2n + 1 B. 2n-1 C. 2n - 1 D. 2n
Mathematics
Find the exact value of the expression.
A. - 
B. 
C. 
D. - 
Mathematics
Write a system of equations associated with the augmented matrix. Do not try to solve.
= 
A. 2x + y = -3 x + 2y = 2 -5x - 5y = 2 B. 2x + y + z = -3 x - 5y = 2 C. 2x = -3 x + y = 2 -5x - 5y = 2
Mathematics