Answer:
a=-1/2 step by step solution is attached to this solution
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Answer:</u></h3>
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Step-by-step explanation:</u></h3>
You could solve this problem by either: Factoring or by using the Quadratic Formula.
SOLVING BY FACTORING STEPS
<em>STEP 1:</em><em> Move (2x−1)(x+1) to the left side of the equation by subtracting it from both sides.</em>
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<em>STEP 2:</em><em> Simplify 2x^2+3x−(2x−1)(x+1).</em>
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<em>STEP 3: </em><em>Simplify each term.</em>
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<em>STEP 4: </em><em>Simplify by adding terms.</em>
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<em>STEP 5:</em><em> Subtract 1 from both sides of the equation.</em>
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<em>STEP 6: </em><em>Divide each term by 2 and simplify.</em>
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SOLVE BY USING THE QUADRATIC FORMULA STEPS
<em>STEP 1: </em><em>Move all terms to the left side of the equation and simplify.</em>
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<em>STEP 2: </em><em>Subtract 1 from both sides of the equation.</em>
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<em>STEP 3: </em><em>Divide each term by 2 and simplify.</em>
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Answer: see below
<u>Step-by-step explanation:</u>
In order to partition line segment AB so that AP and PB have a ratio of 3 : 1
1) Find the x- and y-lengths of the segment AB.
2) Divide the x- and y-lengths by (3 + 1) to find the length of one section.
3) Add 3 times those lengths to point A to find point P ...or...
Subtract 1 times those lengths from point B to find point P.
For example: Consider A = (0, 0) and B = (4, 8)
1) The length from A to B is
x = 4-0 = 4
y = 8-0 = 8
2) Divide those by (3 + 1):
x = 4/4 = 1
y = 8/4 = 2
3) Add 3 times those values to A to find point P:
x = 0 + 3(1) = 3
y = 0+3(2) = 6
--> P = (3, 6)
<em>Note: We could have also subtracted 1 from the x-value of B and 2 from the y-value of B to find that point P = (4-1, 8-2) = (3, 6)</em>
Now we know that the distance from point A to point P is 3 times the distance from point P to point B.
Answer:
Yes, it is linear
3x+y=15
Explanation:
Put the variables on opposite sides so that you have:
=5-x
Multiply by 3 on both sides
y=15-3x
Bring x back to y's side
3x+y=15
All done!