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Helga [31]
2 years ago
5

Elimination method steps

Mathematics
1 answer:
jenyasd209 [6]2 years ago
7 0

Answer:

<h2><em><u>Remarks:</u></em> </h2>

The method used in solving the example above is called the elimination method, because we eliminate one variable first, to get a linear equation in one variable. In the example above, we eliminated y. We could also have eliminated x. Try doing it that way. 2. You could also have used the substitution, or graphical method, to solve this problem. Try doing so, and see which method is more convenient.

<h3>steps of elimination method:</h3><h3> Step 1: </h3>

First multiply both the equations by some suitable non-zero constants to make the coefficients of one variable (either x or y) numerically equal. Step 2: Then add or subtract one equation from the other so that one variable gets eliminated. If you get an equation in one variable, go to Step 3. If in

<h3>Step 2:</h3>

we obtain a true statement involving no variable, then the original equations has infinitely many solutions. If in Step 2, we obtain a false statement involving no variable, then the original pair of equations has no solution, i.e., it is inconsistent.

<h2>Step 3: </h2>

Solve the equation in one variable (x or y) so obtained to get its value.

<h3> Step 4: </h3>

Substitute this value of x (or y) either of the original equations to get the value of the other variable.

Step-by-step explanation:

<h2><em><u>hope</u></em><em><u> it</u></em><em><u> helps</u></em><em><u> you</u></em><em><u><</u></em><em><u>3</u></em></h2>
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The function d(s) = 0.0056s squared + 0.14s models the stopping distance
victus00 [196]

Answer:

The car must have a speed of 25 kilometres per hour to stop after moving 7 metres.

Step-by-step explanation:

Let be d(s) = 0.0056\cdot s^{2} + 0.14\cdot s, where d is the stopping distance measured in metres and s is the speed measured in kilometres per hour. The second-order polynomial is drawn with the help of a graphing tool and whose outcome is presented below as attachment.

The procedure to find the speed related to the given stopping distance is described below:

1) Construct the graph of d(s).

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3) The point of intersection between both curves contains the speed related to given stopping distance.

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3 years ago
(5b2+3b)+(b2-2b) in standard form
den301095 [7]

Answer:

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Step-by-step explanation:

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Hopefully this helps :)

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AC=<br> Help me please!! Thanks so much
katovenus [111]

Answer:

AC = 6√3 in

Step-by-step explanation:

<h3>Finding the length of the chord:</h3>

Join OC. Now ΔAOC is an isosceles triangle as OA = OC =radius.

 ∠A = ∠C = 30.

 ∠A + ∠C +  ∠AOC = 180 {angle sum property of traingle}

 30 + 30 + ∠AOC  = 180°

                 ∠AOC = 180 -60

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Find the length of radius using the bellow formula.

         \sf \boxed{\bf Arc \ length = \dfrac{\theta}{180}\pi r}

            Ф = 120°

                Arc length = 4π

            \sf  4\pi =\dfrac{120}{180}*\pi *r\\\\      r =\dfrac{4\pi * 180}{120*\pi }\\\\    r = 6 \ in

\sf \boxed{\bf chord \ length = 2rSin \ \dfrac{\theta}{2}}

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\sf \boxed{\bf AC = 6\sqrt{3} \ in}

5 0
2 years ago
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