Perform the indicated operation. Be sure to simplify your answer.- 
+ 
A. - 
B. - 
C. - 
D. 
Answer: A
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Find the extreme values of the function subject to the given constraint.
A. Maximum: 6 at 
minimum: 3 at 
B. Maximum: 6 at 
minimum: -3 at 
C. Maximum: 11 at (6, 3, 2), (6, 2, 3), (3, 2, 6), (3, 6, 2), (2, 3, 6), (2, 6, 3); minimum: 1 at 
D. Maximum: 9 at 
minimum: 3 at 
Solve the problem.At the end of the day, a storekeeper had $1070 in the cash register, including both the sale of goods and the sales tax of 7%. What amount of sales tax had been collected?
A. $75 B. $70 C. $65 D. $60
Solve the problem.In the formula L = L0
, L0 is the length of an object in a spaceship moving at velocity v and c is the velocity of light. A spaceship passes you at a speed of 0.50c. You measure its length to be 1000 m. What is its length at rest? Round your answer to the nearest hundredth of a meter if necessary.
A. 866.03 m B. 500 m C. 1118.03 m D. 707.11 m
Simplify the expression.
A. 2
B. 
C. 4
D. 6