Mathematics, 21.10.2020 19:01 mdarter
The row-echelon form of the augmented matrix of a system of equations is given. Find the solution of the system.
1 0 0 0 9/4
0 1 0 0 3/5
0 0 1 0 2/3
0 0 0 1 -9/5
Answers: 2
Mathematics, 21.06.2019 18:00
If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?
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Mathematics, 21.06.2019 18:30
How to use order of operation in 20 divide by 4 multiply 5 = 1
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Mathematics, 21.06.2019 20:40
How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142
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Mathematics, 21.06.2019 21:40
In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.
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The row-echelon form of the augmented matrix of a system of equations is given. Find the solution of...
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