A rotation is an isometry that moves a plane about a fixed point. true or false?
TRUE.
The answer is TRUE.
Answer:

Step-by-step explanation:
![\sqrt[3]{27x^{15}}y^{24} =](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B27x%5E%7B15%7D%7Dy%5E%7B24%7D%20%3D%20)
![= \sqrt[3]{3^3x^{15}}y^{24}](https://tex.z-dn.net/?f=%20%3D%20%5Csqrt%5B3%5D%7B3%5E3x%5E%7B15%7D%7Dy%5E%7B24%7D%20)





NO. To be a proportion, the have to get the same ratio, or the 1st fraction should equal the 2nd:
Is 3/4 =9/19? Certainly not, Hence it's not a ratio
Answer: 18x+16 cm
Step-by-step explanation:
Combine the like terms. 9x+9x = 18x and 8+8=16