Answer:
Because the kind of compounfds that you try to determine using paper chromatography (organic compounds) are usually not soluble in water. Furthermore, water could react chemically with some of this compounds, because it's a very reactive molecule. You need organic solvents that are mostly inert.
Step-by-step explanation:
The equation that is given is only for the specific place of that object. To find the velocity, you need to take the derivative of the equation. This will give you:

Now, to find the average velocity of this object, plug in the values given to you. It's between the time interval [1, 2] so these are the two numbers you'll plug into the velocity equation. Finding this average is like finding any other average.
So


Average velocity is 0.5 sec
To find instantaneous velocity just find the velocity at time one. Think about the name "instantaneous velocity," it's the velocity in that <u>instant</u>.
We already found this, so I don't need more work (it's displayed above).
The instantaneous velocity when
is 2.5 sec.
Answer:
Absolute value is the distance from numbers on a number line. The absolute value of -7 is 7 b/c it is 7 units from 0. The absolute value of 5 is 5 b/c it is 5 units from 0.
A negative number is a number that is negative. On a horizontal number line negative numbers are to the left.
A positive number is a number that is positive. On a horizontal number line positive numbers are to the right.
I don't understand the last paragraph though. Hope this helped :D
Step-by-step explanation:
Answer:
The answer isn't listed in your options, are you sure you didn't make any typos?
Step-by-step explanation:
29*63=1,827
Answer:
A
Step-by-step explanation:
![\dfrac{1}{3}+\dfrac{3}{5}+\dfrac{2}{3}= \left[ \dfrac{1}{3}+\dfrac{2}{3} \right]+\dfrac{3}{5}\\\\\\=\dfrac{3}{3}+\dfrac{3}{5}\\\\\\=1+\dfrac{3}{5}\\\\\\=\dfrac{5}{5}+\dfrac{3}{5}\\\\\\=\dfrac{8}{5}\\\\\\=1\dfrac{3}{5}](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B3%7D%2B%5Cdfrac%7B3%7D%7B5%7D%2B%5Cdfrac%7B2%7D%7B3%7D%3D%20%5Cleft%5B%20%5Cdfrac%7B1%7D%7B3%7D%2B%5Cdfrac%7B2%7D%7B3%7D%20%5Cright%5D%2B%5Cdfrac%7B3%7D%7B5%7D%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B3%7D%7B3%7D%2B%5Cdfrac%7B3%7D%7B5%7D%5C%5C%5C%5C%5C%5C%3D1%2B%5Cdfrac%7B3%7D%7B5%7D%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B5%7D%7B5%7D%2B%5Cdfrac%7B3%7D%7B5%7D%5C%5C%5C%5C%5C%5C%3D%5Cdfrac%7B8%7D%7B5%7D%5C%5C%5C%5C%5C%5C%3D1%5Cdfrac%7B3%7D%7B5%7D)