Answer:
b) 5
Step-by-step explanation:
f(x) = x² + 1
f(2) = (2)² + 1
= 4 + 1
= 5
<u>Answer:</u>

<u>Step-by-step explanation:</u>
To find the solution to the equation, we have to rearrange the equation to make
the subject:

⇒
[Subtracting 2 from both sides]
⇒ 
⇒
[Subtracting
from each side]
⇒ 
⇒
[Diving both sides by 213]
⇒ 
Answer:
D/2=r
Step-by-step explanation:
Since we want r to be by itself what we can do is divide 2 on both sides so 2 can cancel out on 2r and when you divide on both sides your left with d/2=r
Answer:
1) 6
2) Ron is 12 and his. father is 36
3) Duke is 50 and Mae is 10 years old