Why is periodic table important ?
1 answer:
<em>Periodic </em> <em>table</em> <em> </em> <em>is </em> <em>important</em> <em> </em> <em>because:</em>
<em> </em> <em>I</em> <em>t </em> <em>helps </em> <em>in </em> <em>classifying</em> <em> </em> <em>elements </em> <em>on </em> <em>the</em> <em> </em> <em>basis </em> <em>of </em> <em>chemical </em> <em>and </em> <em>physical </em> <em>properties</em> <em>.</em> <em>It </em> <em>helps </em> <em>to </em> <em>discover </em> <em>new</em> <em> </em> <em>elements.</em> <em>Hope </em> <em>it</em> <em> helps</em>
<em>Good </em> <em>luck</em> <em> on</em> <em> your</em> <em> assignment</em>
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x+142 =3x+64
subtract x from each side
142 = 2x+64
subtract 64 from each side
142-64 = 2x
78=2x
divide by 2
78/2 = x
x=39
The number is 39
F(x)=0 f(x)=y so where y=0, the x value is the x in f(x) basically, where the line crosses or touches the x axis, those ar the x values that make the function true
1/9 - 5/6 Convert both of them into denominators of 18. 2/18 - 15/18 Subtract the numerators and keep the denominator: -13/18