Solve the system.x2 + 4x + y = 82x + y - 5 = 0
A. (1, 3), (-5, 15)
B. (1, 3), (-3, 11)
C. (-1, 7)
D. (-1, 7), (0, 8)
Answer: B
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Determine the indefinite integral. Check your work by differentiation.
d?
A. sin ? + ? + C B. sin ? + C C. cos ? + C D. csc ? + cos ? + C
Solve the problem.Evaluate 
at t = 7 for the function w(x, y) = ey - ln x; x = t2, y = ln t.
A. 5
B. 
C. - 
D. 
Find the principal square root of the number. Approximate the answer to the nearest hundredth whenever appropriate.144
A. -12, 12 B. 24 C. 20,736 D. 12
Provide an appropriate response.The price of an item is reduced by 20% in a sale. Two weeks later the price is increased to 20% more than the sale price. Has the item been restored to its original price? If not, is its price now higher or lower than the original price? Explain.
What will be an ideal response?