Answer:
0.8888888888888
Step-by-step explanation:
We know that b
<span>⩾ 1, so b is never 0.
a)
notice, the first figure starts off with 4 tiles and has 10 bordering tiles.
the second figure starts off with 14 tiles and has 14 bordering tiles
the third figure has starts off with 28 tiles and has 20 bordering tiles.
</span>
<span>
b)
She's correct, check a).
</span>
<span>
c)
n(b - 1) + 10</span>
Answer:
125°
Step-by-step explanation:
Supplementary angles sum to 180°
let one angle be x then the larger angle is x + 70, thus
x + x + 7 0 = 180
2x + 70 = 180 ( subtract 70 from both sides )
2x = 110 ( divide both sides by 2 )
x = 55
Hence
larger angle = x + 70 = 55 + 70 = 125°
You must get n by itself. So you would divide the 5 off of the n to get
n=4/5+32/5