Step-by-step explanation:
<u>y</u> - <u>4</u> = -4
x - 6
y - 4 = -4x + 24
y = -4x + 24 + 4
y = -4x + 28
The standard deviation of a particular sample is equal to the standard deviation divided by the square root of the sample size. That is,

The mean of a particular sample is equal to the mean of the set the sample was taken from. That is,

Answer:
rational
Step-by-step explanation:
When I did the math I came up as 3.88 but if you have to round up it wound be 4 or 3.9
Answer:
The Length of third side is 52 units.
Step-by-step explanation:
Given:
Length of First side = 48
Length of second side = 20
Also given the angle between them is 90°.
Hence we can say figure shown is a right angled triangle.
For finding the third side we can use Pythagoras theorem which states that;
"If a triangle is right angled then, the Square of the hypotenuse is equal to sum of the square of the other two sides."

Hence substituting the values we get;

Now taking Square root on both side we get;

Hence Length of Third side is 52 units.