Answer:
![\dfrac{27}{16}x^2](https://tex.z-dn.net/?f=%5Cdfrac%7B27%7D%7B16%7Dx%5E2)
Step-by-step explanation:
The relevant properties are ...
(a^b)^c = a^(bc)
(a^b)/(a^c) = a^(b-c)
So, the expression simplifies to ...
![\dfrac{(3x^2)^3}{(2x)^4}=\dfrac{3^3x^{2\cdot 3}}{2^4x^4}=\dfrac{27}{16}x^{6-4}=\dfrac{27}{16}x^{2}](https://tex.z-dn.net/?f=%5Cdfrac%7B%283x%5E2%29%5E3%7D%7B%282x%29%5E4%7D%3D%5Cdfrac%7B3%5E3x%5E%7B2%5Ccdot%203%7D%7D%7B2%5E4x%5E4%7D%3D%5Cdfrac%7B27%7D%7B16%7Dx%5E%7B6-4%7D%3D%5Cdfrac%7B27%7D%7B16%7Dx%5E%7B2%7D)
.85 * 10^-4 is the scientific notation
Answer:
240:60 is equvilent to 15:15
30 + 2x = 90
2x = 60
x = 30
Answer:
x = 30