Answer:
1. ![\frac{x^2}{y^8}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E2%7D%7By%5E8%7D)
2 a) ![\frac{-49}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B-49%7D%7B2%7D)
b) 0
3. x = 10
Step-by-step explanation:
1.
![(\frac{x^{-3}y^4}{x^{-2}})^{-2}\\({x^{-3+2}y^4})^{-2}\\({x^{-1}y^4})^{-2}({x^{-1*-2}y^{4*-2})= \frac{x^2}{y^8}](https://tex.z-dn.net/?f=%28%5Cfrac%7Bx%5E%7B-3%7Dy%5E4%7D%7Bx%5E%7B-2%7D%7D%29%5E%7B-2%7D%5C%5C%28%7Bx%5E%7B-3%2B2%7Dy%5E4%7D%29%5E%7B-2%7D%5C%5C%28%7Bx%5E%7B-1%7Dy%5E4%7D%29%5E%7B-2%7D%28%7Bx%5E%7B-1%2A-2%7Dy%5E%7B4%2A-2%7D%29%3D%20%5Cfrac%7Bx%5E2%7D%7By%5E8%7D)
2. a)
![2 [(\frac{-1}{4}) -12 (-1)^2] - 5[24 +2 (-12)]^2\\2[(\frac{-1}{4}) -12] - 5[24 -24]^2\\2 * [(\frac{-1}{4}) -12] -0\\\frac{-49}{2}](https://tex.z-dn.net/?f=2%20%5B%28%5Cfrac%7B-1%7D%7B4%7D%29%20-12%20%28-1%29%5E2%5D%20-%205%5B24%20%2B2%20%28-12%29%5D%5E2%5C%5C2%5B%28%5Cfrac%7B-1%7D%7B4%7D%29%20-12%5D%20-%205%5B24%20-24%5D%5E2%5C%5C2%20%2A%20%5B%28%5Cfrac%7B-1%7D%7B4%7D%29%20-12%5D%20%20-0%5C%5C%5Cfrac%7B-49%7D%7B2%7D)
b)
![-a^2b^2 - 3a^3b^2\\-\frac{1}{9}*1 - 3 * \frac{-1}{27} *1\\-\frac{1}{9} + \frac{1}{9}\\0](https://tex.z-dn.net/?f=-a%5E2b%5E2%20-%203a%5E3b%5E2%5C%5C-%5Cfrac%7B1%7D%7B9%7D%2A1%20-%203%20%2A%20%5Cfrac%7B-1%7D%7B27%7D%20%2A1%5C%5C-%5Cfrac%7B1%7D%7B9%7D%20%2B%20%5Cfrac%7B1%7D%7B9%7D%5C%5C0)
3.
![\frac{3}{4}x + \frac{5}{6} = 5x -\frac{125}{3} \\\frac{5}{6} + \frac{125}{3} = 5x - \frac{3}{4}x\\\frac{5+250}{6} = \frac{20x -3x}{4}\\\frac{255}{6} = \frac{17x}{4}\\x = 10](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B4%7Dx%20%2B%20%5Cfrac%7B5%7D%7B6%7D%20%3D%205x%20-%5Cfrac%7B125%7D%7B3%7D%20%5C%5C%5Cfrac%7B5%7D%7B6%7D%20%2B%20%5Cfrac%7B125%7D%7B3%7D%20%3D%205x%20-%20%5Cfrac%7B3%7D%7B4%7Dx%5C%5C%5Cfrac%7B5%2B250%7D%7B6%7D%20%3D%20%5Cfrac%7B20x%20-3x%7D%7B4%7D%5C%5C%5Cfrac%7B255%7D%7B6%7D%20%3D%20%5Cfrac%7B17x%7D%7B4%7D%5C%5Cx%20%3D%2010)
Answer:
C
Step-by-step explanation:
Let’s divide 48 by 16 to see how many cents per inch of wire. 48/16=3 so it costs 3 cents per inch of wire. now all we have to do is multiply 47 by 3, and you will get 141 cents, or $1.41.
Answer: Im sorry, can you finish your sentence for me? maybe its a glitch you can send me a message if you want me to help you?! (:
Step-by-step explanation:
It’s the third one for this question