Answer:
DC = 3
Step-by-step explanation:
Based on triangle similarity theorem, we would have the following equation:
![\frac{AD}{AC} = \frac{AE}{AB}](https://tex.z-dn.net/?f=%20%5Cfrac%7BAD%7D%7BAC%7D%20%3D%20%5Cfrac%7BAE%7D%7BAB%7D%20)
Plug in the values
![\frac{9}{9 + DC} = \frac{12}{12 + 4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B9%7D%7B9%20%2B%20DC%7D%20%3D%20%5Cfrac%7B12%7D%7B12%20%2B%204%7D%20)
![\frac{9}{9 + DC} = \frac{12}{16}](https://tex.z-dn.net/?f=%20%5Cfrac%7B9%7D%7B9%20%2B%20DC%7D%20%3D%20%5Cfrac%7B12%7D%7B16%7D%20)
![\frac{9}{9 + DC} = \frac{3}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B9%7D%7B9%20%2B%20DC%7D%20%3D%20%5Cfrac%7B3%7D%7B4%7D%20)
Cross multiply
3(9 + DC) = 9×4
27 + 3DC = 36
Subtract 27 from each side
3DC = 36 - 27
3DC = 9
Divide both sides by 3
DC = 9/3
DC = 3
There are two so I'll give you the answer to both! 4,000 and 400
Answer:
Tom/Lee
Step-by-step explanation:
Try 18 and then multiply the sum of 2 and 18 to 7
Answer:
8.06
Step-by-step explanation:
√(x2 - x1)² + (y2 - y1)²
√(6 - 2)² + (0 - 7)²
√(4)² + (-7)²
√(16) + (49)
√65
= 8.06