Answer:
Step-by-step explanation:
(x+y) (x+y)
=x^2+xy+yx+y^2
=x^2+2xy+y^2
Hope it helps
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Answer:
1. decreasing 2. neutral 3. increasing 4. increasing 5. decreasing 6. neutral
Step-by-step explanation:
You need to include a picture or an equation
I think that the trend that would be seen in the time column of the data table would be that the number of seconds would increase. I know this because for each flask, the concentration of sodium thiosulfate decreases, since less of it is being mixed with more water. Also, when the concentration of a substance decreases, then the reaction rate also decreases, as there will be fewer collisions with sulfuric acid if there are fewer moles of sodium thiosulfate. When there are fewer collisions in a reaction, the reaction itself will take longer, and so when the sodium thiosulfate is diluted, the reaction takes more time.
Hope this helps you and any others :)
Is there any possibility that you're looking at a pie-chart and not
sharing it with us ?
Let's see. If 72° represent 4 people, then each person is (72°/4) = 18° .
But then they would all freeze and get sick. No, that can't be it. It must
be the other kind of degrees ... the kind in circles and angles.
OK. If 72° represent 4 people, then each person is (72°/4) = 18° .
Now, if the whole crowd exactly fits into one full circle, how many
could that be ?
Well, there are always 360° in one full circle. And each person
uses 18° . So how many times can 18° fit into a full circle ?
(360°) / (18°) = 20 times.
So 20 people exactly fit into one whole circle.
Does the question have anything to do with that ?
