As the mean is E[X] =150 and

= 30, using the normal distribution to get the answer is just using Z. So, what we need is P(X<180).
![Z= \frac{x-E[X]}{\sigma } = \frac{180-150}{30} = \frac{30}{30} = 1](https://tex.z-dn.net/?f=Z%3D%20%20%5Cfrac%7Bx-E%5BX%5D%7D%7B%5Csigma%20%7D%20%3D%20%5Cfrac%7B180-150%7D%7B30%7D%20%3D%20%20%5Cfrac%7B30%7D%7B30%7D%20%3D%201)
P(x<180) = P(z< 1) =

(1) = 0.8413.
Then, just multiplying the amount of books you have, which is 500, with the probability would give how many books are less than 180 pages, being:
Y = 4(-3) + 11
y = -12+11
y= -1
so y=4x+11
Answer:
2.22
Step-by-step explanation:
To get 2 2/9 in decimal form, we basically convert the mixed number to a fraction and then we divide the numerator of the fraction by the denominator of the fraction. Here are the detailed math steps we use to convert 2 2/9 mixed number to decimal form:
Step 1: Multiply the whole number by the denominator:
2 × 9 = 18
Step 2: Add the product you got in Step 1 to the numerator:
18 + 2 = 20
Step 3: Divide the sum from Step 2 by the denominator:
20 ÷ 9 = 2.222222
That's it! The answer to 2 2/9 in decimal form is displayed below:
2 2/9 ≈ 2.22
Answer:
11
Step-by-step explanation:
33÷11=3
22÷11=2
3 and 2 habe no common factors
Answer:
46400 rands
Step-by-step explanation:
Because it's common sense