Step-by-step explanation:
x -2 -1 2 7
y -6 -6 -2 3
All y are in under root
Answer:
4.5 m
Step-by-step explanation:
The area of two similar triangles are 75 m2 and 300 m2. This gives you the scale factor of the triangles:
![\dfrac{A_{small}}{A_{large}}=k^2\Rightarrow k^2 =\dfrac{75}{300}=\dfrac{3}{12}=\dfrac{1}{4}\Rightarrow k=\dfrac{1}{2}.](https://tex.z-dn.net/?f=%5Cdfrac%7BA_%7Bsmall%7D%7D%7BA_%7Blarge%7D%7D%3Dk%5E2%5CRightarrow%20k%5E2%20%3D%5Cdfrac%7B75%7D%7B300%7D%3D%5Cdfrac%7B3%7D%7B12%7D%3D%5Cdfrac%7B1%7D%7B4%7D%5CRightarrow%20k%3D%5Cdfrac%7B1%7D%7B2%7D.)
Then you can find the length of the corresponding side:
![\dfrac{side_{small}}{side_{large}}=k\Rightarrow =\dfrac{side_{small}}{9}=\dfrac{1}{2},\ side_{small}=\dfrac{9}{2}=4.5\ m.](https://tex.z-dn.net/?f=%5Cdfrac%7Bside_%7Bsmall%7D%7D%7Bside_%7Blarge%7D%7D%3Dk%5CRightarrow%20%3D%5Cdfrac%7Bside_%7Bsmall%7D%7D%7B9%7D%3D%5Cdfrac%7B1%7D%7B2%7D%2C%5C%20side_%7Bsmall%7D%3D%5Cdfrac%7B9%7D%7B2%7D%3D4.5%5C%20m.)
68% due to more 1,2, and 3's