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.
985-35=950, 950÷2=475, 475+35=510, 510 and 475
The expression is equivalent to -8y + 7x.
Given
Expression; (-3y - x) - (5y - 8x)
<h3>How to find the equivalent expression?</h3>
To find the equivalent expression multiply the expression and add and simplify.
Then,
The expression is equivalent to;
(-3y - x) - (5y - 8x)
-3y - x - 5y + 8x
-8y + 7x
Hence, the expression is equivalent to -8y + 7x.
To know more about expression click the link given below.
brainly.com/question/13040575
Answer:
384
Step-by-step explanation:
All you have to do is multiply the three numbers
Answer:
y=-1/2x+2
Step-by-step explanation:
First, the slope of perpendicular line have negative reciprocal coefficients. In this case the coefficient is 2, The reciprocal of 2 is 1/2 and the negative of 1/2 is -1/2. So x will have a coefficient of -1/2.
Second, find the equation with a slope of -1/2 that passes through (-2,3). There are a few ways to do this. I like to plug the given x value into the expression -1/2x, so -1/2(-2) which equals positive 1 and for the line to pass through the point (-2,3) you need to add 2. So: y=-1/2x+2
