Solve the system
2x-2y + 6z=20
-19x+5 y -5z=-152
5x+2y-11z=31...
Answers: 3
Mathematics, 21.06.2019 19:30
Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?
Answers: 2
Mathematics, 21.06.2019 19:30
Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?
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Mathematics, 21.06.2019 20:30
What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)
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Mathematics, 21.06.2019 20:30
Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?
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