Answer:
My answer is that x = 4.4
Step-by-step explanation:
The answer to the equation is 6, so the false one is the last one. All the other ones are true.
The values of (x, y) are (-5, 1), if the equations
and
are solved by elimination method.
Step-by-step explanation:
The given is,
................................(1)
.....................................(2)
Step:1
Equation (2) is multiplied by -1 ( Eqn (2) × -1 )
..................................(3)
Step:2
Substrate the equation (1) and equation (3),
![x-5y=-10](https://tex.z-dn.net/?f=x-5y%3D-10)
![x-y=-6](https://tex.z-dn.net/?f=x-y%3D-6)
( - )
After the Subtraction equation becomes,
![(x-x)+(-5y+y)=(-10+6)](https://tex.z-dn.net/?f=%28x-x%29%2B%28-5y%2By%29%3D%28-10%2B6%29)
![(0)+(-4y)=(-4)](https://tex.z-dn.net/?f=%280%29%2B%28-4y%29%3D%28-4%29)
![-4y=-4](https://tex.z-dn.net/?f=-4y%3D-4)
![y=1](https://tex.z-dn.net/?f=y%3D1)
Step:3
By using y value find value of x,
![x-5y=-10](https://tex.z-dn.net/?f=x-5y%3D-10)
![x-(5)(1)=-10](https://tex.z-dn.net/?f=x-%285%29%281%29%3D-10)
![x=-10+5](https://tex.z-dn.net/?f=x%3D-10%2B5)
![x=-5](https://tex.z-dn.net/?f=x%3D-5)
Step:4
Check for solution,
![-x+y=6](https://tex.z-dn.net/?f=-x%2By%3D6)
![-(-5)+1=6](https://tex.z-dn.net/?f=-%28-5%29%2B1%3D6)
![6=6](https://tex.z-dn.net/?f=6%3D6)
Both sides are equal so answer is corrected
Result:
The values of (x, y) are (-5, 1), if the equations
and
are solved by elimination method.
13, 17, 15, 18, 21, 13, 20;(the add 3.7 has no place in this data set .Ignore it)
1) arrange the data from smaller to greater: 13 13 15 17 18 20 21
2) mean: Add up all data & divide by the number of data
that is 7==> (117/)/7 so the mean = 16.71
3) Median is the central value of the data point that is in the middle of the sequence, so the median is 18
4) Mode the number that is most repeated & it's 13 (repeated twice)
5) The range is the difference between the largest & the smallest
Range = 21-13 ==> Range = 8
There is a problem in answers you have written: Either you mistyped or omitted something or the answer are false. With the data you gave me, my methodology is 100% right
Answer: 3120
Step-by-step explanation: as you keep going you add to its self for exampl if you wanted to find the 9th term nd the 8th term is 40 you just add 40+40
and you keep doing that
Answer:
Plot the graph and the points.
You can see B, C and E belong to the graph,