Mathematics, 01.07.2020 23:01 TrucerZ6707
For the following system, use the second equation to make a substitution for x in the first equation. x + 5y - 10 = 0, x = 2y - 8 What is the resulting equation in simplest form? -3y-18=0, 3y-18=0, 7y-18=0
Answers: 3
Mathematics, 21.06.2019 17:50
On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.
Answers: 2
Mathematics, 21.06.2019 19:30
Factor the following expression. 27y3 β 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y β 7)(9y2 + 2ly + 49) c. (3y β 7)(932 β 217 + 49) d. (3y + 7)(92 β 2ly + 49)
Answers: 1
Mathematics, 21.06.2019 21:00
Isabel graphed the following system of equations. 2x β y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)
Answers: 2
For the following system, use the second equation to make a substitution for x in the first equation...
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