Answer:
(5x + 40), (7x + 8), (10x)
Step-by-step explanation:
Ok, I'm not completely sure, I'm taking a bullet here. But lemme know what you get
Answer:
If there are 125 girls, and the ratio is boys to girls, then you can divide 125 by 5 to get the multiplication factor. This would be 25. Now you can multiply 25 by 4 to get how many boys were in the gym, which would be 100. To get back to your original ratio, you can divide 100/125 by 25 on top and bottom to get 4:5, or 4/5. :)
Step-by-step explanation:
Answer:
Probability is 89.99%
Step-by-step explanation:
divide 252 by 2518 and you get 10.01% but that represents the people who did make the gesture so instead you would minus 252 from 2518 and that would be 252 - 2518 = 2266 then you would divide 2266 by 2518 and you get 2266/2518 = 0.8999 which is equal to 89.99%
Answer:
a = 370,000
b = 2,115,000
c = 4,230,000
city c is 11.4 times the population of city a
Step-by-step explanation:
10 to the 5 degree is 100,000. multiply that by 3.7 to get the population of City a.
City C is 2,115,000 * 2.
divide the population of City C by the population of City a.
4,230,000 ÷ 370,000= 11.43
According to the desired test, the test that should be conducted is:
- (B) A one-sided, two-sample t-test
<h3>Test:</h3>
- At the null hypothesis, it is tested if Brand A batteries do not last longer than Brand B batteries, that is, the result of the subtraction is of at most 0:
- At the alternative hypothesis, it is tested if it is greater, that is:
The factors determining the test used are as follows:
- We can find the <u>standard deviation for the sample</u>, hence a t-test is used.
- There are two samples, the lifetimes for batteries A and for batteries B, hence, a two-sample test is used.
- We are testing if one mean is greater than another, and more than/less than tests are one-sided.
- Hence, option B is correct.
You can learn more about test hypothesis at brainly.com/question/13873630
