Find the reciprocal, if it exists.
A. 
B. 1
C. 
D. - 
Answer: D
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Solve the problem. Round your answer, if appropriate.The volume of a rectangular box with a square base remains constant at 1,100 cm3 as the area of the base increases at a rate of 2 
2/sec. Find the rate at which the height of the box is decreasing when each side of the base is 12 cm long. (Do not round your answer.)
A. 
cm/sec
B. 
cm/sec
C. 
cm/sec
D. 
cm/sec
Write as a subtraction problem and evaluate.The difference of -2xy and -2xy added to the difference of 5xy and -8xy
A. [5xy - (-8xy)] - [(-2xy + (-2xy)]; 17xy B. [(-2xy + (-2xy)] + [5xy - (-8xy)]; 9xy C. [(-2xy - (-2xy)] - [5xy - (-8xy)]; -13xy D. [5xy - (-8xy)] + [(-2xy - (-2xy)]; 13xy
Solve the problem.A corporation's bank account has $6531 in it when the treasurer writes checks for $1765, $1708, and $582. Then, deposits of 
and $4184 are made. What is the new balance?
A. $5042 B. -$5042 C. $8602 D. $8020
Find the unit vector that has the same direction as the vector v.v = 5i
A. u = 5i
B. u = 25i
C. u = i
D. u = 
i