Answer:
12 meters
Step-by-step explanation:
2x9=18 (get both widths)
42-18=24 (take away widths of 9m)
24/2=12 (divide by 2 to get one length)
It's not always easy to type in mathematical symbols, but you may need to try again here. It is unlikely that your problem actually states
2
Log x. Perhaps you meant Log x.
2
Double-check to ensure that you have entered this problem correctly. Also, please include the instructions for this problem. Explain what that "3 3" means.
Y=-x^2 is just y=x^2 reflected over the x-axis. In other words, the parabola is upside-down.