The answer is 68cm^2. Hope this helps!
<u>Answer:</u>
B. ![f^{-1}(x) = \frac{x + 3}{9}](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28x%29%20%3D%20%5Cfrac%7Bx%20%2B%203%7D%7B9%7D)
<u>Step-by-step explanation:</u>
![let \space\ y = f(x)\\\\y = 9x -3\\](https://tex.z-dn.net/?f=let%20%5Cspace%5C%20y%20%3D%20f%28x%29%5C%5C%5C%5Cy%20%3D%209x%20-3%5C%5C)
• Now make x the subject of the equation:
![9x = y + 3\\\\x = \frac{y + 3}{9} \\](https://tex.z-dn.net/?f=9x%20%3D%20y%20%2B%203%5C%5C%5C%5Cx%20%3D%20%5Cfrac%7By%20%2B%203%7D%7B9%7D%20%5C%5C)
• Replace x with f⁻¹(x) and y with x:
![f^{-1}(x) = \frac{x + 3}{9}](https://tex.z-dn.net/?f=f%5E%7B-1%7D%28x%29%20%3D%20%5Cfrac%7Bx%20%2B%203%7D%7B9%7D)
The only thing you need to do is divide 56 by -7. You know the d must be a negative number because negative x negative= positive. So 56 / -7 is -8.
Answer:
1. 169π ft²
2. 144π in²
3) 25π yd²
Step-by-step explanation:
1) π * 13²
π * 169
units = ft²
169π ft²
2) π * 12²
π * 144
units = in²
144π in²
3)π * 5²
π * 25
units = yd²
25π yd²
If my answer is incorrect, pls correct me!
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-Chetan K