If x-7 =0
Then x =7
Substitute x=7 into f(x):
2(7)^2 - 11(7) + k
= (98-77)+k
= 21+k
Therefore k=-21 because 21+(-21)=0
i am edditing my post because i got the answer wrong
Answer:
Extracting out that inner right angle.
Hypotenuse = 8
Height = h
Adjacent :
![= \frac{10}{5} = 2](https://tex.z-dn.net/?f=%20%3D%20%20%5Cfrac%7B10%7D%7B5%7D%20%20%3D%202)
Height, h :
![{ \tt{h = \sqrt{ {8}^{2} - {5}^{2} } }} \\ { \tt{h = \sqrt{64 - 25} }} \\ { \tt{h = \sqrt{39} }} \\ the \: height \: is \: { \boxed{6.2}} \: units](https://tex.z-dn.net/?f=%7B%20%5Ctt%7Bh%20%3D%20%20%5Csqrt%7B%20%7B8%7D%5E%7B2%7D%20%20-%20%20%7B5%7D%5E%7B2%7D%20%7D%20%7D%7D%20%5C%5C%20%7B%20%5Ctt%7Bh%20%3D%20%20%5Csqrt%7B64%20-%2025%7D%20%7D%7D%20%5C%5C%20%7B%20%5Ctt%7Bh%20%3D%20%20%5Csqrt%7B39%7D%20%7D%7D%20%5C%5C%20the%20%5C%3A%20height%20%5C%3A%20is%20%5C%3A%20%7B%20%5Cboxed%7B6.2%7D%7D%20%5C%3A%20units)
Answer: Complain
Step-by-step explanation:
Gripe- express a complaint or grumble about something, especially something trivial.
Answer:
x = -4
Step-by-step explanation:
x = 3 - 7
x = - (7 - 3)
x = -4