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3 years ago

10

How to factor!!

{x}^{2} - 36x \leqslant 0" alt=" {x}^{2} - 36x \leqslant 0" align="absmiddle" class="latex-formula">

1 answer:

Anuta_ua [19.1K]3 years ago

7 0

Hey mate, your answer is here ...
${x}^{2} - 36x \leqslant 0$
$x(x - 36) \leqslant 0$

x = 0 , 36

I hope this is helpful for you ....
please mark me brainlist...

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Find the size of the unknown angle in the triangle

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3 years ago

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3 years ago

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Likurg_2 [28]

Answer:

y=kx

subst y=10 and x=20 into the above

<em>1</em><em>0</em><em>=</em><em>k20</em>

<em>k</em><em>=</em><em>1</em><em>0</em><em>/</em><em>2</em><em>0</em>

<em>k</em><em>=</em><em>1</em><em>/</em><em>2</em>

<em>therefore</em><em> </em><em>relationship</em><em>:</em><em> </em><em>y</em><em>=</em><em>1</em><em>/</em><em>2</em><em>x</em>

<em>subst</em><em> </em><em>x</em><em>=</em><em>1</em><em>5</em><em> </em><em>into</em><em> </em><em>the</em><em> </em><em>relationship</em>

<em> </em><em>y</em><em>=</em><em>1</em><em>/</em><em>2</em><em>(</em><em>1</em><em>5</em><em>)</em>

<em>y</em><em>=</em><em>7</em><em>,</em><em>5</em>

Step by step explanation:

Step 1: when they say y varies directly with x they mean<em> y is proportional to x</em>
step 2: so y=kx where <em>k is the constant</em>
step 3: is to substitute <em>y=10</em> and <em>x=20</em> into the above equation y=kx
step 4: you will end up with <em>10=k20</em> then divide both sides by 20 so that <em>k becomes the subject of the formula </em>
step 5: your answer from the above will be <em>k=10/20 </em>so the relationship is <em>y is directly proportional to 1/2 x </em>what you did here is that you substituted k for 1/2 in the equation in step 3
step 6: is to finally substitute x=15 into the equation <em>y=1/2x</em> to finally get your answer <em>y</em><em>=</em><em>7</em><em>,</em><em>5</em><em>.</em>

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3 years ago