Answer:
0.0008
Step-by-step explanation:
The formula for a hypergeometric probability is
where N is the population, A is the number of objects of type A, B is the number of objects of type B, n is the sample size and x is the number of successes.
In this problem, N is 13. A is 5, since there are 5 objects drawn, and B is 8, since there are 8 remaining objects.
The sample size, n, is 5, and x is 5:
Answer:
Perimeter = 22.809836694575
Step-by-step explanation:
A(-2, 2) ; B(6,2) ; C(0, 8)
Then
The perimeter of ΔABC = AB + BC + AC
= 22.809836694575
First, add 2.7 and 5 to get 7.7. Then, multiply 7.7 and 3 to get 23.1. Finally, subtract 2 from 23.1.
If you're distributing, then multiply 3 by 2.7 and 5. Then, add and subtract the sum by 2.
Hope this helped!
David's score on his fifth test would be an 87. If you add up all the scores from his first to his fourth test, it would 363. However, since there are five tests, in order to get a 90 percent, the sum of all five test scores would be 450. 450 - 363 = 87.
