Multiply the expressions.(7x - 5y)2
A. 49x2 - 70xy + 25y2
B. 49x2 + 25y2
C. 7x2 + 25y2
D. 7x2 - 70xy + 25y2
Answer: A
Mathematics
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Find the derivative at each critical point and determine the local extreme values.y = 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A rectangular box with volume 277 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the base. Express the cost the box as a function of x.
A. C(x) = 2x2 + 
B. C(x) = 4x + 
C. C(x) = 3x2 + 
D. C(x) = 3x2 + 
Mathematics
Add.- 
+ 
A. - 
B. - 1
C. 
D. - 
Mathematics
Translate the percent statement to a basic percent equation.54 is 20% of 270.
A. 270 ? 54 = 0.2 B. 54 ? 270 = 0.2 C. 0.2 ? 270 = 54 D. 0.2 ? 54 = 270
Mathematics