Answer:
0.8770
Step-by-step explanation:
We are dealing with a mean of a sample, so we use the formula
![z=\frac{\bar{X}-\mu}{\sigma \div \sqrt{n}}](https://tex.z-dn.net/?f=z%3D%5Cfrac%7B%5Cbar%7BX%7D-%5Cmu%7D%7B%5Csigma%20%5Cdiv%20%5Csqrt%7Bn%7D%7D)
Our mean, μ, is 174.9 and our standard deviation, σ, is 35.2. Our sample size, n, is 35. To find P(X > 168),
z = (168-174.9)/(35.2÷√35) = -6.9/(35.2÷5.9161) = -6.9/5.9499 = -1.16
Using a z table, we see that the area under the curve to the left of this value is 0.1230. However, we want the area to the right; this means we subtract from 1:
1-0.1230 = 0.8770
It’s D 3,5 bc when you reflect over y-axis instead of -3 its 3 and 5 just stays 5
$2.07 for 1 sock
just divide 12 by 5.79
27 divide by 5= 5.4 plus 125=130.4
Answer:
18√(2y)
Step-by-step explanation:
The common factor √(2y) can be factored out, and its coefficients combined.
<h3>Simplification</h3>
The root itself cannot be simplified in this case.
![10\sqrt{2y}+5\sqrt{2y}+3\sqrt{2y}=(10+5+3)\sqrt{2y}=\boxed{18\sqrt{2y}}](https://tex.z-dn.net/?f=10%5Csqrt%7B2y%7D%2B5%5Csqrt%7B2y%7D%2B3%5Csqrt%7B2y%7D%3D%2810%2B5%2B3%29%5Csqrt%7B2y%7D%3D%5Cboxed%7B18%5Csqrt%7B2y%7D%7D)