Answer:
1. D
2. D
3. H
4. B
5. B
Step-by-step explanation:
Answer:28.26
Step-by-step explanation:9 x 3.14
I got 42.5 cuz 4x+10=180 then take away 10 from both sides so 4x=170 and you divide each side by 4
Answer:
(a) 
(b) 
Step-by-step explanation:
(a)
can also be written as
x 
the
= ± y
Therefore :
= ±
since it was given that y < 0 , then the factor will be 
(b)
can also be written as :
x 
Therefore , one of the factor is 
Answer:
x = 5
Step-by-step explanation:
18x = 117 - 27
18x = 90
x = 90/18
x = 5