8^14
if it’s not then my apologies
Answer:
The correct answer is: 95% confident the average concentration of PCBs in the water supply is between 2.4 ppb and 3.6 ppb.
Step-by-step explanation:
Answer:
x=36/11=3.2727...
Step-by-step explanation:
The solution can be found by solving for x.
First, combine like terms and simplify each side of the equation.
![-12x+26 = -(15)-x+2+3\\-12x+26 = -15-x+5\\-12x+26=-10-x](https://tex.z-dn.net/?f=-12x%2B26%20%3D%20-%2815%29-x%2B2%2B3%5C%5C-12x%2B26%20%3D%20-15-x%2B5%5C%5C-12x%2B26%3D-10-x)
Second, use inverse operations to move terms across the equal sign.
![-12x+26 = -10-x\\-12x+x+26=-10-x+x\\-11x+26=-10\\-11x+26-26=-10-26\\-11x=-36\\x=36/11=3.2727...](https://tex.z-dn.net/?f=-12x%2B26%20%3D%20-10-x%5C%5C-12x%2Bx%2B26%3D-10-x%2Bx%5C%5C-11x%2B26%3D-10%5C%5C-11x%2B26-26%3D-10-26%5C%5C-11x%3D-36%5C%5Cx%3D36%2F11%3D3.2727...)
4. 1,50
5. 0,50
6. Tawni swims the fastest because she swims at roughly 0,8 meters per second which is faster than the other two contestants.