Answer:
25x^2 - 4
Step-by-step explanation:
and x times an x is x^2 so
25x^2 - 4
Step-by-step explanation:
A.
![{8}^{ \frac{1}{3} } = \sqrt[3]{8} = 2](https://tex.z-dn.net/?f=%20%7B8%7D%5E%7B%20%5Cfrac%7B1%7D%7B3%7D%20%7D%20%20%3D%20%20%5Csqrt%5B3%5D%7B8%7D%20%20%3D%202)
B.
![{8}^{ \frac{2}{3} } = { (\sqrt[3]{8}) }^{2} = {2}^{2} = 4](https://tex.z-dn.net/?f=%20%7B8%7D%5E%7B%20%5Cfrac%7B2%7D%7B3%7D%20%7D%20%20%3D%20%20%7B%20%20%28%5Csqrt%5B3%5D%7B8%7D%29%20%7D%5E%7B2%7D%20%20%3D%20%20%7B2%7D%5E%7B2%7D%20%20%3D%204)
C.
![{16}^{ \frac{3}{4} } = { (\sqrt[4]{16} )}^{3} = {2}^{3} = 8](https://tex.z-dn.net/?f=%20%7B16%7D%5E%7B%20%5Cfrac%7B3%7D%7B4%7D%20%7D%20%20%3D%20%20%7B%20%28%5Csqrt%5B4%5D%7B16%7D%20%29%7D%5E%7B3%7D%20%20%3D%20%20%7B2%7D%5E%7B3%7D%20%20%3D%208)
The value of x is 6
6 - 2 = 4
4 ÷ 2 = 2
Answer:
It went down 5.5°C a minute.
Step-by-step explanation:
You have to look for the difference of 100 and 78, which is 22.
Divide the difference with the minutes (4), equalling 5.5.
my second opinion would be you are correct, its b
