If a= 2ft and c= 11ft. Find the missing side of the right triangle
1 answer:
Answer:
or
Step-by-step explanation:
The formula for finding the any side of the triangle is
We know that a=2 and c=11, so we can go ahead and plug those into the formula.
To find side b, we have to make it alone on one side. Subtract 4 on both side.
Now square root both sides, and that leaves us with:
or
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"Over" usually means divide. First hint, check.
If we write it out, it looks like this:
This is the same as <em>some number divided by 7.</em>
If we write it out, it looks like this:
This is the same as <em>some number divided by 7.</em>
Answer:
With alpha 0.95 and 8 degrees of freedom χ²= 2.73
And with alpha 0.05 and 8 degrees of freedom χ²=15.51
Step-by-step explanation:
The significance level ∝ = 1- 0.9 = 0.1
But we need the area of the middle so we divide this significance level with 2
so that we get exactly the middle area .
Dividing 0.1/2= 0.05
So we will have two values for chi square
One with 0.9 + 0.05 = 0.95 alpha and one with 0.05 alpha . This is because the chi square is right tailed.
So with alpha 0.95 and 8 degrees of freedom χ²= 2.73
And with alpha 0.05 and 8 degrees of freedom χ²=15.51
This can be shown with a graph.
