Answer:
1/6
Step-by-step explanation:
convert ti decimal then compare the two
52.4/2= 26.2
26.2-3= 23.2
So the original number = 23.2
Answer:
r = - 11
Step-by-step explanation:
Calculate the slope m using the slope formula and equate to - 4
m = 
with (x₁, y₁ ) = (4, 5) and (x₂, y₂ ) = (8, r)
m =
=
= - 4 ( multiply both sides by 4 )
r - 5 = - 16 ( add 5 to both sides )
r = - 11
They are similars because If you see the picture
(10(1-(1/2)^5)/1-(1/2) =
20(1-1/32)
=155/8