The domain is -1, 0, 1, 2, 3, 4. Hope this helps.
Answer:
C
Step-by-step explanation:
If the number is n then
square of 2 times a number
square of 2n
(2n)²
that was your mistake, because (2n)²=4n², not 2n²
the result is 81
(2n)²=81
square root both sides
remember positive and negative roots
2n=+/-9
divide by 2
n=+/-4.5
n=4.5 or -4.5
Answer:
A= 42.5
Step-by-step explanation:
2*5= 10
10/2=5
2*2= 4
4/2=2
5+2+4=11
3.5*9= 31.5
31.5+11=42.5
Sorry if this is wrong if it is wrong please let me know I think I know what I did wrong if it is wrong
