Answer:
The value of c is 12.25
Step-by-step explanation:
we know that
A perfect square trinomial is of the form
![(x-a)^{2}=x^{2}-2ax+a^{2}](https://tex.z-dn.net/?f=%28x-a%29%5E%7B2%7D%3Dx%5E%7B2%7D-2ax%2Ba%5E%7B2%7D)
In this problem we have
![x^{2}-7x+c](https://tex.z-dn.net/?f=x%5E%7B2%7D-7x%2Bc)
so
equate the equations
![x^{2}-7x+c=x^{2}-2ax+a^{2}](https://tex.z-dn.net/?f=x%5E%7B2%7D-7x%2Bc%3Dx%5E%7B2%7D-2ax%2Ba%5E%7B2%7D)
we have
the following equations
-----> equation A
and
-----> equation B
<u>Solve the equation A</u>
![-7x=-2ax](https://tex.z-dn.net/?f=-7x%3D-2ax)
![7=2a](https://tex.z-dn.net/?f=7%3D2a)
![a=3.5](https://tex.z-dn.net/?f=a%3D3.5)
<u>Solve the equation B</u>
![c=a^{2}](https://tex.z-dn.net/?f=c%3Da%5E%7B2%7D)
![c=3.5^{2}=12.25](https://tex.z-dn.net/?f=c%3D3.5%5E%7B2%7D%3D12.25)
therefore
![(x-3.5)^{2}=x^{2}-7x+12.25](https://tex.z-dn.net/?f=%28x-3.5%29%5E%7B2%7D%3Dx%5E%7B2%7D-7x%2B12.25)
The value of c is 12.25
Answer:
C.(3|-4)
Step-by-step explanation:
10x10x10 which is 1000 have a great day
Answer:
Step-by-step explanation: