Answer:
h=6x+8/3x+27
Step-by-step explanation:
To solve this question we will have to open the bracket first
6x+8=h(3x+9)
6x+8=3hx+9h
Let's continue solving
6x+8=3h(x+9)
Divide both sides by x+9
3h=6x+8/x+9
To make h the subject of formula
h=6x+8/x+9 ×1/3
h=6x+8/3(x+9)
h=6x+8/3x+27
This cannot be solved further so the final answer is
h=6x+8/3x+27
Its 1/5,
35/100 - 15/100 = 20/100
for 20, 40, 60, 80, 100
1, 2, 3, 4, 5
so 20/100 = 1/5
A triangle solver tells you
C = 85° b ≈ 8.4 c ≈ 10.4From the sum of angles of a triangle,
C = 180° -42° -53° = 85°
From the law of sines
b = sin(53°)/sin(42°)*7 ≈ 8.355
c = sin(85°)/sin(42°)*7 ≈ 10.422
Answer:
8N - 4 border tiles.
Step-by-step explanation:
There are 4 border tiles in each corner and between the tiles there are N-2 tiles along the 4 sides.
So the number of border tiles
= 4+ 4(N - 2)
= 4 + 4N - 8
= 8N - 4.