Answer:
Kindly check explanation
Step-by-step explanation:
Given the Coefficient of correlation (r) = 0.864
The Coefficient of determination (R^2) :
0.864^2 = 0.747 ( 3 decimal places)
B) the Coefficient of determinationR^2 tells about the proportion of variation in the dependent variable that is predicted by the independent variable, Hence, a proportion of about 0.75 should fall within the regression line.
C) percentage variation explained :
Coefficient of determination * 100%
0.747 * 100% = 74.7%
D) unexplained variation due to other factors or sampling error :
(total variation - explained variation) = (100 - 74.7)% = 25.3%
In any square the diagonal = a*sqrt(2), where a = length of any side (in a square all sides are equal in length)
*BTW sqrt(2) = radical 2... Just to be sure it's <span>intelligible...
</span>
Soo... if the diagonal = 8*sqrt(2) cm, then the side (a) = 8 cm.
:-)
Adding all of these should equal to 180 from the way the angle is set up.
So the equation should be:
(3x + 2) + (2x + 5) + (2x - 9) = 180
You can remove parentheses as it doesn’t affect the equation since it is all addition.
Let’s first add the common variables together.
3x + 2x + 2x = 7x
2 + 5 + (-9) = -2
So now we should have:
7x - 2 = 180
Now add 2 to both sides.
7x = 182
Divide both sides by 7 to isolate x.
x = 26
So x is 26.
Answer: 125.6 cm³
Step-by-step explanation:
1. To solve this problem you must apply the formula for calculate the volume of a cylinder:
Where h is the height and r is the radius.
2. Therefore, you only need to substitute the values of the radius and the height into the formula, as you can see below:
3. Then, the answer is: 125.6 cm³.