Answer:
can you please post the situation and ill be happy to help
Step-by-step explanation:
(f + g)(x) is x² + 4x - 4
<u>Step-by-step explanation:</u>
Step 1:
Given f(x) = 4x + 1, g(x) = x² - 5. Find (f+g)(x)
(f + g)(x) = f(x) + g(x) = 4x + 1 + x² - 5 = x² + 4x - 4
7>c+18
subtract 18 from both sides to isolate c
7-18>c
c<-11
Use the pythagorean theorem
![{a}^{2} + {b}^{2} = {c}^{2}](https://tex.z-dn.net/?f=%20%7Ba%7D%5E%7B2%7D%20%20%2B%20%20%7Bb%7D%5E%7B2%7D%20%20%3D%20%20%7Bc%7D%5E%7B2%7D%20)
input your values
![{20}^{2} + {21}^{2} = {c}^{2}](https://tex.z-dn.net/?f=%20%7B20%7D%5E%7B2%7D%20%20%2B%20%20%7B21%7D%5E%7B2%7D%20%20%3D%20%20%7Bc%7D%5E%7B2%7D%20)
solve
![{20}^{2} + {21}^{2} = 41 {}^{2}](https://tex.z-dn.net/?f=%20%7B20%7D%5E%7B2%7D%20%20%2B%20%20%7B21%7D%5E%7B2%7D%20%20%3D%2041%20%7B%7D%5E%7B2%7D%20)
then square root 'c'
![\sqrt{41} = 6.4 \: or \: \sqrt{41}](https://tex.z-dn.net/?f=%20%5Csqrt%7B41%7D%20%20%3D%206.4%20%5C%3A%20or%20%5C%3A%20%20%5Csqrt%7B41%7D%20)
these options are for if your teacher wants it in radical form as mine had