Answer:
10
Step-by-step explanation:
1.25 each song
she bought 8 songs
1.25 x 8 = 10
10-20 = 10
Answer:
I think that x equals 10 (maybe)
Step-by-step explanation:
If you're meaning a value between 11 and 20, write
1120 and put a line under the < and >, which indicates that x could also equal 11 or 20. x doesnt only have to be a value between 11 and 20, but it can equal the numbers too. It could be any variable, actually, so you could do any other letter if you wanted
Answer:
51% of the variation in Y is not explained by the regression line.
Step-by-step explanation:
To find the amount of variation not explained by the regression equation (how you found the correlation coefficient), we need to find <em>R. </em>We already have r ...
So to find R from r ( the correlation coefficient ) we just square it.
r² = .7² = .49
Then we just subtract that number from 1 to get the amount of <em>variation that is </em>not explained - which is ... .49 - 1 = .51 (convert to percent) = 51%
C is your answer. 5x + 2 = 17
First let’s get them all in terms of x:
Box kites = 3x
Dragon kites = x + 2
Butterfly kites = x
Adding all those up:
x + 3x + x + 2 = 17
Combine like terms:
5x + 2 = 17
