Answer:
The correct answer is 10.30
Step-by-step explanation:
First, find the mean of the numbers by averaging them. Then, subtract the observation from the mean. Square them, then average them. Find the square root of this number and round to the nearest hundredth.
Given:
PQRS is a circle, PQT and SRT are straight lines.
To find:
The value of x.
Solution:
Since PQRS is a circle, PQT and SRT are straight lines, therefore, PQRS isa cyclic quadrilateral.
We know that, sum of opposite angles of a cyclic quadrilateral is 180 degrees.
Now, SRT is a straight line.
(Linear pair)
...(i)
According to the Exterior angle theorem, in a triangle the measure of an exterior angle is equal the sum of the opposite interior angles.
Using exterior angle theorem in triangle QRT, we get
Therefore, the value of x is 103 degrees.
Answer:
Add I, add 9, repeat.
Step-by-step explanation:
It is because if you look at the Add 9 subtract 8, repeat. it won't work
If you look at add 10, subtract 9, repeat. it its just like the first one, it won't work.
If you look at add 1, add 10, repeat, it also won't work from when you are getting 6 to 15.
So if you look at Add I, add 9, repeat., it works for all.
First, open the parenthesis. You get
6x^2 - 24x -16x^2 - 9x + 1
Then simplify to
-10x^2 - 33x +1
