Answer:57+51+3
Step-by-step explanation: use https://www.cymath.com/
Explaining- when you look at the vertex to the other vertex you see the length and that is when you multiply
Answer- A
The square root of 169=13 so it is rational
Answer:
Option B.
Step-by-step explanation:
The given data set is
34, 35, 41, 28, 26, 29, 32, 36, 38, 40
We need to find the mean deviation of the given data.
Number of observations, n = 10
Mean of the data is




Formula for mean deviation is




The mean deviation of the ratings is 4.12.
Therefore, the correct option is B.
Answer:
The solution for given system of equation is:
and ordered pair is: 
So, (1,3) is not solution to the given system of equations.
Step-by-step explanation:
we can solve the system of equations to find the value of x and y and then verify if (1,3) is a solution or not.
The system of equation given is:

Solving:
Let:

Put value of y from equation 2 into equation 1

Now, put value of x in equation 2 to find value of y

So, the solution for given system of equation is:
and ordered pair is: 
So, (1,3) is not solution to the given system of equations.