Answer:
23
Step-by-step explanation:
Hey there!
This can be written as

This is in form of

, it can be expanded as
=> (n-7)(n+7)=0
=> n -7 = 0 or n + 7 = 0
=> n = 7 or n = -7
So option 7 , -7 are correct.
Hope this is clear :)
Have a good day:)
Answer:
0
Step-by-step explanation:
5(x+3) replace x with -3
5(-3+3)
5(0)
0
Answer:
20
Step-by-step explanation:
The formula for circumference is 2
r, where r stands for radius. Therefore, the circumference of this circle can be defined by:
2
r
2
10
20
Hope this helps :) Please contact me if you have any questions!
The graph is not a function, as it does not pass the vertical line test. The lines at 2,-1 and 2,3 overlay and pass the vertical line more than once, meaning that the graph is not a function.