Answer:
A. For the situation presented, we find that the researcher assumes that the test with the new method will obtain results at a cost of less than $ 220.
the null hypothesis will be that the operation of the new method will cost not less than $ 220.
the alternative hypothesis will be that the operation of the new method will be less than $ 220
B. With the situation of the exercise we can affirm that the null hypothesis is not rejected, since the director has verified that the cost of the new method is below $ 220, so the new method can be implemented.
C. For this situation, it is observed that the null hypothesis has been rejected, so after verification, the manager has observed that the cost of the new method is less than $ 220, so the manager's proposal can be developed.
Answer:
4 is the answer
Step-by-step explanation:
because they gave 6into-4 =24
6into4 =24
I think it will help full for uu
it is helpful pls. do lijee
Answer:
You multiply both sides by 4
Step-by-step explanation:
- You have the equation
? I assume, remember to use the ' / ' (forward slash) to indicate division. - Next we multiply 4 on both sides
- Which gives us
- Rewrite the left side as
- Now 4 divided by 4 is 1, and 1 times n is n, so
That's why we multiply by 4. Hope this helps
Answer:
(-1,6)
Step-by-step explanation:
The missing part of this question is the system given as;
![-c+2d=13](https://tex.z-dn.net/?f=-c%2B2d%3D13)
![-9c-4d=-15](https://tex.z-dn.net/?f=-9c-4d%3D-15)
We solve for c in the top equation to get:
![c=2d-13](https://tex.z-dn.net/?f=c%3D2d-13)
Substitute
into the bottom equation to get:
![-9(2d-13)-4d=-15](https://tex.z-dn.net/?f=-9%282d-13%29-4d%3D-15)
Expand to get:
![-18d+117-4d=-15](https://tex.z-dn.net/?f=-18d%2B117-4d%3D-15)
Group similar terms to get:
![-18d-4d=-15-117](https://tex.z-dn.net/?f=-18d-4d%3D-15-117)
![-22d=-132](https://tex.z-dn.net/?f=-22d%3D-132)
![d=6](https://tex.z-dn.net/?f=d%3D6)
Put
into
to get:
![c=2*6-13](https://tex.z-dn.net/?f=c%3D2%2A6-13)
![c=12-13=-1](https://tex.z-dn.net/?f=c%3D12-13%3D-1)
The solution is (-1,6)