Answer : 19.6cm
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8-2=6
180×6=1080 degrees
sum of interior angle of an octagonal box = 1080 degrees
5. D
6.G
7.B
8.J
9.C
10.F
Sorry it took time.
Answer:
(x) = x + 8
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 9(x - 8) ← divide both sides by 9
= x - 8 ( add 8 to both sides )
+ 8 = x
Change y back into terms of x with x = (x) , thus
(x) = x + 8
Answer:Yes
Step-by-step explanation:
5×3=15. 9×3=27