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serious [3.7K]
3 years ago
6

Can someone help please ! Answer correct for brainliest and also get a thanks ! :)

Mathematics
1 answer:
Alona [7]3 years ago
3 0
The standard deviation of the set is 5.2

To find standard deviation, we take the square root of the variance.
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Please help! I really need it
nirvana33 [79]
Add all sides.
5x+2+3x+8+4x-1
Combine like terms
12x+9
Subtract nine to get it on the other side of the equal sign
12x= -9
Divide by twelve
x=-9/12
Simplify
x=-3/4
Plug in x.
4 0
3 years ago
Pls help due ASAP <br> Show workings please!!!
Vlad [161]

Answer:

AB=8

Step-by-step explanation:

First, you get figure out x. Since both sides are equal, use the equation x+3=2x-2, then subtract x from both sides, 3=x-2, and then add 2 to both sides, x=5. Then use one of the equations to get the length of the side, I used x+3=8, which is your answer.

(hope this helps :P)

5 0
3 years ago
What are the angles of 1 and 2
CaHeK987 [17]

geometry texts refer to an angle with a measure of 180° as a straight angle. In Figure 12 , ∠ BAC is a straight angle.

Step-by-step explanation:

4 0
3 years ago
Second derivative test for:<br> y= e^x (x^2 -7x +13)
borishaifa [10]
Hello 
<span>y= e^x (x^2 -7x +13)
y' = (</span>e^x)' (x^2 -7x +13)+e^x (x^2 -7x +13)'
y' = e^x(x^2 -7x +13)+e^x (2x-7)
y" = e^x(x^2 -7x +13)+e^x (2)
y"=e^x(x^2 -7x +15)
6 0
3 years ago
Find the value of each expression. Show your work. 10c4
Gnoma [55]
I think you forgot to add the other part of the question
7 0
3 years ago
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