An open box is to be made from a square piece of cardboard, 
on a side, by cutting equal squares with sides of length x from the corners and turning up the sides (see figure below). After determining the function V, in terms of x, that represents the volume of the box, use a graphing utility to estimate the dimensions that will maximize its volume.
A. 
B. 
C. 
D. 
E. 
Answer: B
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 
B. -4
C. 2
D. - 
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Convert the rectangular coordinates to polar coordinates with r>0 and 0??<2?.  figure 1.png)
 figure 2.png)
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Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
Mathematics
Identify the coefficient of each term of the polynomial.-5z - 6a
A. -5 and -6 B. 5 and 6 C. -5 and 6 D. 5 and -6
Mathematics