Decide if the expression in each pair are equivalent. Explain how you know.
1.x+x+x+x+ and 4×<...
Mathematics, 21.02.2020 07:41 Brendah4962
Decide if the expression in each pair are equivalent. Explain how you know.
1.x+x+x+x+ and 4×
2.5x and x+5
Answers: 2
Mathematics, 21.06.2019 18:50
The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103
Answers: 3
Mathematics, 21.06.2019 19:00
Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?
Answers: 3
Mathematics, 21.06.2019 22:00
Determine if the equation defines y as a function of x: 2xy = 1. yes o no
Answers: 2
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