Set up an equation that can be used to solve the problem. Solve the equation and answer the question asked. Andrea decided to rollerblade to her mother's house. Three blocks from her home, one of the wheels on her skate broke, and she had to walk the remaining seven blocks to her mother's. She could not repair her skate and had to walk all the way back home. How many more blocks did Andrea walk than she skated?
A. 20 blocks
B. 17 blocks
C. 14 blocks
D. 10 blocks
Answer: C
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Write the expression in simplest form. If a radical appears in the denominator, rationalize the denominator.
A. 
B. 
C. 
D. 
Find all the first order partial derivatives for the following function.f(x, y, z) = x2y + y2z + xz2
A. 
= 2xy + z2; 
= x2 + 2yz; 
= y2 + 2xz
B. 
= 2xy + z2; 
= x2 + yz; 
= y2 + xz
C. 
= 2y + z2; 
= x2 + 2z; 
= y2 + 2x
D. 
= 2xy; 
= x2 + 2yz; 
= y2 + 2xz
Find the value of the indicated variable for the values given.A = P 
nt ; determine A when P = 500, r = 5% , n = 12 and t = 5Round your answer to the nearest hundredth.
A. 620.11 B. 686.91 C. 631.40 D. 641.68
Solve the problem.The function P(x) = 0.61x2 - 0.042x + 2 models the approximate population P, in thousands, for a species of fish in a local pond, x years after 1997. During what year will the population reach 40,704 fish?
A. 2004 B. 2005 C. 2006 D. 2007