Mathematics, 15.10.2019 20:20 alyshaaa36
Determine whether the statement is true or false. if it is true, explain why it is true. if it is false, give an example to show why it is false. if the augmented matrix corresponding to a system of three linear equations in three variables has a row of the form 000a, where a is a nonzero number, then the system has no solution. true. the row with the given form says 0x + 0y + 0z + 0a = 0. but if a ≠0, we have a contradiction. true. the row with the given form says 0x + 0y + 0z = a, or 0 = a. but if a ≠0, we have a contradiction. false. the row with the given form says 0x + 0y + 0z + 0a = 0. there is no contradiction; instead there are an infinite number of solution. false. that a row has the given form indicates that the matrix is not yet in row-reduced form, and more row operations are needed to determine the answer. false. the row with the given form indicates that an error was made in the calculation; this form should not occur in a correctly reduced matrix.
Answers: 3
Mathematics, 21.06.2019 17:30
Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules
Answers: 1
Mathematics, 21.06.2019 18:30
The table shows the relationship between the number of cups of cereal and the number of cups of raisins in a cereal bar recipe: number of cups of cereal number of cups of raisins 8 2 12 3 16 4 molly plotted an equivalent ratio as shown on the grid below: a graph is shown. the title of the graph is cereal bars. the horizontal axis label is cereal in cups. the x-axis values are 0, 20, 40, 60, 80,100. the vertical axis label is raisins in cups. the y-axis values are 0, 10, 20, 30, 40, 50. a point is plotted on the ordered pair 40,20. which of these explains why the point molly plotted is incorrect? (a) if the number of cups of cereal is 40, then the number of cups of raisins will be10. (b)if the number of cups of raisins is 40, then the number of cups of cereal will be10. (c) if the number of cups of cereal is 40, then the number of cups of raisins will be 80. (d) if the number of cups of raisins is 40, then the number of cups of cereal will be 80.
Answers: 1
Mathematics, 22.06.2019 01:30
What is the solution for the following system of equations? use any method to solve. 2x + 8y = 4 x = -3y + 5 question 4 options: x = 14, y= -3 x = 2, y = -3 x = -3, y = -3 x = 12, y = 5
Answers: 1
Determine whether the statement is true or false. if it is true, explain why it is true. if it is fa...
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