Answer:
22.86 ml.
Step-by-step explanation:
Let x ml of 5% sulfuric solution must Molly add to 20ml of 20% solution to get a 12% solution.
Now, x ml of 5% sulfuric acid solution has pure acid of 
ml.
Again, 20 ml of 20% sulfuric acid solution has pure acid of 
ml.
Therefore, we can write the equation as
⇒ 0.05x + 4 = 2.4 + 0.12x
⇒ 0.07x = 1.6
⇒ x = 22.86 ml. (Answer) (Approximate value)
The y-coordinate would be 42.
Hexagons have 6 sides. The x-coordinate is the number of hexagons; since our x-coordinate is 7, that means 7 hexagons.
The y-coordinate is the total number of sides. 7 hexagons * 6 sides per hexagon = 42 sides.
<span> The coordinates of the focus are </span><span><span>(<span>h,k+<span>1/<span>4a</span></span></span>)</span><span>(<span>h,k+<span>1/<span>4a</span></span></span>)
y=1/38*x^2
here h=0,k=0 ,a=1/38
so if we put values to find focus
focus(0,0+1/4*1/38)=(0,9.5)
</span></span><span>
</span>
Answer:
1/1
Step-by-step explanation:
cause
