Calculate the mean of the set of data values. If necessary, round to one more decimal place than the data values have. The amounts spent on books by six college students: $216.45, $296.63, $238.75, $203.88, 
, 
Round your answer to the nearest cent.
A. $340.03
B. $260.02
C. $226.69
D. $272.02
Answer: C
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Write a system of equations associated with the augmented matrix. Do not try to solve.
A. x = 5 y = 5 z = 0 B. x = 2 y = 2 z = 7 C. x = -2 y = -2 z = -7 D. x = 0 y = -4 z = -9
Solve the problem.A farmer has 260 meters of fencing and wants to enclose a rectangular area of 4200 square meters. What dimensions should he use?
A. 70 meters by 60 meters
B. 140 meters by 2 meters
C. 65 meters by 65 meters
D. 
meters by 
meters
Find all solutions to the equation in the interval [0, 2?).cos 4x - cos 2x = 0
A. 
, 
, 
, 
, 
, 
B. 0, 
, 
C. 0, 
, 
, ?, 
, 
D. No solution
Solve the problem.Jarod is having a problem with rabbits getting into his rectangular vegetable garden, so he decides to fence it in. The length of the garden is 2 feet more than 5 times the width. He needs 100 feet of fencing to do the job. Use the equations 2l + 2w = 100 and l = 5w + 2 to find the length and width of the garden.
A. length: 83
ft; width: 16
ft
B. length: 47 ft; width: 9 ft
C. length: 42 ft; width: 8 ft
D. length: 37 ft; width: 7 ft