Mathematics, 20.10.2019 20:10 asmita9876
Which of these strategies would eliminate a variable in the system of equations?
2x β 6y = 6
6x β 4y = 2
choose all answers that apply:
a. multiply the bottom equation by 3, then subtract the bottom equation from the top equation.
b. multiply the top equation by - 3, then add the equations.
c. multiply the bottom equation by -3/2
then add the equations.
Answers: 3
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Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.
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Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. β 6 β
β 2 2. ? 3. mβ 6 = mβ 2 3. def. of congruent 4. β 6 is supp. to β 8 4. def. of linear pair 5. β 2 is supp. to β 8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem
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Which of these strategies would eliminate a variable in the system of equations?
2x β 6y = 6<...
2x β 6y = 6<...
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