Vertical angles are where the top equals the bottom or the left equals the right angle. So we would do:
8x - 13 = 5x + 8
And then substitute.
3x = 21
x = 7
Answer:
(3,4) domain is 3, (1,3) domain is 1, (1,4) domain is 1, (5,2) domain is 5
Step-by-step explanation:
Domain is the input, and range is the output. Here's a detailed video you should watch
https://www.khanacademy.org/math/algebra/algebra-functions/domain-and-range/v/domain-of-a-function-intro
The coefficients in order are 2 2 1
The mean of 10 randomly selected students is definitely more likely to be closer to 75. 10 randomly selected students to include information and are more like to reflect the class’s scores. Consider an extreme example. Seventy-five students in a class of 100 earned perfect scores. The other 25 earned zeros. The average score of the class would be 75. A sample of 10 random students would almost certainly include more 100s then 0s, but both would be included in the sample. The mean of this samples score is closer to 75 than any individuals.
If we break down the problem if basically gives the answer:
five times the quotient of some number and ten
5 times (any variable) divided by 10
The answer is B. The answer isn't A because you have to go in order of what the question states. It didn't say ten first. It can't be C or D because those are not quotients.
