What is the value of 3 in the system of equations below?
3x + y - z=5
2x -y-z= -3
2 +...
Mathematics, 02.10.2021 04:50 nettyshaf202406
What is the value of 3 in the system of equations below?
3x + y - z=5
2x -y-z= -3
2 + y +z = 9
Answers: 1
Mathematics, 21.06.2019 18:30
Nick has box brads. he uses 4 brads for the first project. nick letโs b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.
Answers: 3
Mathematics, 21.06.2019 23:00
Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference รฎล(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference รฎล(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference รฎล(x - x)2 by more than data sets (ii) and (iii). none of the above
Answers: 2
Mathematics, 22.06.2019 02:30
Which number completes the system of linear inequalities represented by the graph? y > 2x โ 2 and x + 4y >
Answers: 1
Mathematics, 22.06.2019 04:30
The polynomial 2x3 + 9x2 + 4x - 15 represents the volume in cubic feet of a rectangular holding tank at a fish hatchery. the depth of the tank is (x โ 1) feet. the length is 13 feet.
Answers: 2
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