Do you have the numbers? if you do then add them together
Answer:
12 ft
Step-by-step explanation:
use the pythagorean theorem to write the equation c^2=(7.2)^2+(9.6)^2, then solve for c with a calculator (if you can use one)
Answer:
11/35
Step-by-step explanation:
There are a total of 21 people in the group, 12 of whom are not Democrats. The members are selected in succession. The probability the first member isn't a Democrat is 12/21.
Now there are 20 people remaining, 11 of who are not Democrats. So the probability the second member isn't a Democrat is 11/20.
The total probability is (12/21) (11/20) = 11/35
We have been given that the average age of a breed of dog is 19.4 years. The distribution of their ages is normal and 20% of dogs are older than 22.8 years. We are asked to find the standard deviation.
Since 20% of dogs are older than 22.8 years, so 80% of dogs are younger than 22.8.
We will use z-score formula to solve our given problem.
, where,
z = z-score,
x = Random sample score,
= Mean,
= Standard deviation.
Now we will use normal distribution table to find the z-score corresponding to 80% or .
z-score corresponding to 0.80 is 0.845.
Upon substituting our given values in z-score formula, we will get:
Therefore, the standard deviation is approximately 4.02 years.