3 triangles.
If you take 3 toothpicks you create the first triangle. You put the last toothpick down the middle, you get 2 more
Answer:
Pay attention to class
Step-by-step explanation:
The correct answer for this will be a because you can times them together hope this helps
For this case we must do a conversion. By definition we have to:
1 milligram equals 1000 micrograms
1 liter equals 1000 milliliters
So:
![13 \frac {mg} {L} * (\frac {1} {1000} * \frac {L} {mL}) * (\frac {1000} {1} * \frac {ug} {mg}) =\\\frac {13 * 1000} {1000} * \frac {ug} {mL} =\\13 \frac {ug} {mL}](https://tex.z-dn.net/?f=13%20%5Cfrac%20%7Bmg%7D%20%7BL%7D%20%2A%20%28%5Cfrac%20%7B1%7D%20%7B1000%7D%20%2A%20%5Cfrac%20%7BL%7D%20%7BmL%7D%29%20%2A%20%28%5Cfrac%20%7B1000%7D%20%7B1%7D%20%2A%20%5Cfrac%20%7Bug%7D%20%7Bmg%7D%29%20%3D%5C%5C%5Cfrac%20%7B13%20%2A%201000%7D%20%7B1000%7D%20%2A%20%5Cfrac%20%7Bug%7D%20%7BmL%7D%20%3D%5C%5C13%20%5Cfrac%20%7Bug%7D%20%7BmL%7D)
Answer:
![13 \frac {ug} {mL}](https://tex.z-dn.net/?f=13%20%5Cfrac%20%7Bug%7D%20%7BmL%7D)
26 square root 5 plus 2 square root 10