Help me please and thanks
1 answer:
Answer:
A. (1, -4)
Step-by-step explanation:
You can try the answers to see which works. (The first one does.)
Or, you can solve the equations algebraically. Equating y-values works well here:
2x -6 = -2x -2
4x = 4 . . . . . . . add 2x+6 to both sides; next divide by 4
x = 1 . . . . . . . . shows you selection A is correct
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A graphing calculator can show you the point of intersection. Perhaps this is the way to go, since the unit seems to be on graphing systems of equations. Both of these equations are in slope-intercept form (y=mx+b), so are easily graphed by starting from the y-intercept (b) and using the slope (m=rise/run) to find another point on the line.
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Step-by-step explanation:
The elements of matrices are represented in the form
Here r is the row number and c is the column number.
Given matrix is:
The elements of matrix will be represented by a_{r,c}
We have to find
Which means that the first row and third column.
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So,
Keywords: Matrices, Elements
Learn more about matrices at:
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Answer:
<h2> P = 98 cm</h2>Step-by-step explanation:
Given one side and diagonal of rectangle we can use Pythagorean theorem to calculate the other side of it.
Perimeter:
P = 2W + 2L = 2•40 + 2•9 = 80 + 18 = 98