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alex41 [277]
3 years ago
9

Solve by using the substitution method 3x + y = 13 5x - 2y= 18

Mathematics
1 answer:
Gelneren [198K]3 years ago
6 0
<h2>Answer:</h2><h2>Solve for the first variable in one of the equations, then substitute the result into the other equation. </h2><h2>Point Form: </h2><h2>(4,1) </h2><h2>Equation Form:  </h2><h2>x = 4, y = 1</h2><h2>_____________________________________</h2><h2>Hope this helps!~ </h2><h3>I need everyone to know something! Don't let anyone ever push you down or call you worthless.  </h3><h3>You are worth everything and more! So stay strong, hold on, and live long!  </h3><h3>Most people don't hear this often. Your all loved, no matter what it feels like. So please, stay strong. If not for yourself then for me and everyone else who cares for you...</h3><h3>░░░░░░░░░░░▄▀▄▀▀▀▀▄▀▄░░░░░░░░░░░░░░░░░░ </h3><h3>░░░░░░░░░░░█░░░░░░░░▀▄░░░░░░▄░░░░░░░░░░ </h3><h3>░░░░░░░░░░█░░▀░░▀░░░░░▀▄▄░░█░█░░░░░░░░░ </h3><h3>░░░░░░░░░░█░▄░█▀░▄░░░░░░░▀▀░░█░░░░░░░░░ </h3><h3>░░░░░░░░░░█░░▀▀▀▀░░░░░░░░░░░░█░░░░░░░░░ </h3><h3>░░░░░░░░░░█░░░░░░░░░░░░░░░░░░█░░░░░░░░░ </h3><h3>░░░░░░░░░░█░░░░░░░░░░░░░░░░░░█░░░░░░░░░ </h3><h3>░░░░░░░░░░░█░░▄▄░░▄▄▄▄░░▄▄░░█░░░░░░░░░░ </h3><h3>░░░░░░░░░░░█░▄▀█░▄▀░░█░▄▀█░▄▀░░░░░░░░░░ </h3><h3>░░░░░░░░░░░░▀░░░▀░░░░░▀░░░▀░░░░░░░░░░░░ </h3><h3 />
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Jamie was asked to make r the subject of the formula
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Answer:

Assuming the formula below, the answer is:

      r=\dfrac{12s}{12+t}

Explanation:

I can teach you how to <em>make r the subject of a formula</em>, with an example.

Other similar question asks to make r the subject of this formula:

         t=\dfrac{12(s-r)}{r}

<u>1. Apply multiplication property of the equalities: muliply both sides of the equality by r</u>

<u />

       t\times r=12(s-r)

<u>2. Apply distributive property on the right side</u>

      t\cdot r=12s-12r

<u>3. Addition property: ad 12r to both sides</u>

       t\cdot r+12r=12s

<u>4. Common factor r on the left side</u>

        r(12+t)=12s

<u>5. Division property of equalities: divide both sides by 12 + t</u>

        r=\dfrac{12s}{12+t}

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Find the product.<br><br> (3p^4)^3 · (p^2)^7
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Step-by-step explanation:

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Fifty is an even number
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In the circle shown below, ∠BAC is a central angle, and r is the length of AB.
Bas_tet [7]

Answer:

Ф = the measure of ∠BAC in radians

Step-by-step explanation:

∵ ∠BAC is a central angle

∴ The are of the sector will depended on the length of the radius <em>r </em>and the measure of the central angle <em>Ф</em>

If the measure of Ф in degrees

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If the measure of Ф in radians

∴ The area of the sector = 1/2 r² Ф

When to change from degree to radian you do that

Ф radian = Ф°/180 × π

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∴ Area sector = 1/2 r² Ф ⇒ Ф in radians

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