Answer:
x+y=-5.75
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
Well, you would simply need to use the distributive property!
-(2)x-(2)2+(2)y-(2)9=1
-2x-4+2y-18=1
Then you need to add/subtract so the similar numbers are together.
-2x+2y-22=1
-2x+2y=23
x+2y=-11.5
x+y=-5.75
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Please, please give brainliest, it would be greatly appreciated, I only a few more before I advance, thanks!
Answer:
B
Step-by-step explanation:
arc length = circumference × fraction of circle
= 84 ×
= 21 cm
The linear equality represented by the graph as,
<h3>What is the definition of inequality?</h3>
Inequality is a sort of equation in which the equal sign is missing. As we will see, inequality is defined as a statement regarding the relative magnitude of two claims.
The slope of the dashed line is found as;

The slope-intercept form is;
y=mx+c
Substitute the obtained value;

We are aware that the given line Is a dashed line, and everything to its left is shadowed.
Hence, the linear equality is represented by the graph as,
To learn more about inequity, refer to brainly.com/question/20383699
#SPJ1
Answer:
> a<-rnorm(20,50,6)
> a
[1] 51.72213 53.09989 59.89221 32.44023 47.59386 33.59892 47.26718 55.61510 47.95505 48.19296 54.46905
[12] 45.78072 57.30045 57.91624 50.83297 52.61790 62.07713 53.75661 49.34651 53.01501
Then we can find the mean and the standard deviation with the following formulas:
> mean(a)
[1] 50.72451
> sqrt(var(a))
[1] 7.470221
Step-by-step explanation:
For this case first we need to create the sample of size 20 for the following distribution:

And we can use the following code: rnorm(20,50,6) and we got this output:
> a<-rnorm(20,50,6)
> a
[1] 51.72213 53.09989 59.89221 32.44023 47.59386 33.59892 47.26718 55.61510 47.95505 48.19296 54.46905
[12] 45.78072 57.30045 57.91624 50.83297 52.61790 62.07713 53.75661 49.34651 53.01501
Then we can find the mean and the standard deviation with the following formulas:
> mean(a)
[1] 50.72451
> sqrt(var(a))
[1] 7.470221