Use a calculator to evaluate the following expression. Round your answer to the nearest hundredth.
?
?
A. -1,641.44
B. -1,641.49
C. -1,641.64
D. -1,641.03
E. -1,641.54
Answer: E
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Write the objective function that describes the problem.An office manager needs to buy new filing cabinets. Cabinet A costs $5, takes up 5 square feet of floor space, and holds 7 cubic feet of files. Cabinet B costs $8, takes up 8 square feet, and holds 13 cubic feet. He has only $74 to spend and the office has room for no more than 74 square feet of cabinets. Let x equal the number of cabinet A's bought and y equal the number of cabinet B's bought.
A. z = 10x + 3y B. z = 3x + 10y C. z = 13x + 7y D. z = 7x + 13y
Write the system of linear equations as a matrix equation.
What will be an ideal response?
Select the graph of the function f(x) =
3[[x]].
?
A. 
B. ?
C. ?
D. ?
E. ?
Use trigonometric identities to find the value of the given function. Find cos 135°.
A. 
B. 
C. -2 + 
D. - 