Mathematics, 25.07.2020 22:01 iibabycarrotsii
Question 8 of 10
In order to solve the following system of equations by addition, which of the
following could you do before adding the equations so that one variable will
be eliminated when you add them?
4x - 2y=7
3.1 - 3y=15
O A. Multiply the top equation by 3 and the bottom equation by 4
O B. Multiply the top equation by 1/3
O c. Multiply the top equation by
-3 and the bottom equation by 2
D. Multiply the top equation by 3 and the bottom equation by 2
Answers: 2
Mathematics, 21.06.2019 21:00
*let mβ cob = 50Β°30β, mβ aob = 70Β° and mβ aoc = 20Β°30β. could point c be in the interior of β aob? why?
Answers: 1
Mathematics, 21.06.2019 23:30
Simplify (8x2 β 1 + 2x3) β (7x3 β 3x2 + 1). β5x3 + 11x2 β 2 5x3 β 11x2 + 2 x3 + 2x2 + x3 x3 β 2x2 β x3
Answers: 1
Mathematics, 21.06.2019 23:50
4. (10.03 mc) the equation of line cd is y = β2x β 2. write an equation of a line parallel to line cd in slope-intercept form that contains point (4, 5). (4 points) y = β2x + 13 y = negative 1 over 2 x + 7 y = negative 1 over 2 x + 3 β 2x β 3
Answers: 2
Question 8 of 10
In order to solve the following system of equations by addition, which of the
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