Using the Sine Rule:-
20 /sin 45 = BC / sin 30
BC = 20 sin 30 / sin45
= 20 * 1/2 / 1 / sqrt2
= 20 * 1/2 * sqrt2
= 10 sqrt2 answer
Answer:

Step-by-step explanation:
Given the equation

Divide both sides by 

Simplify

Add 9 to both sides

Simplifying



as


Therefore,

Answer:
y=3x+5 is the answer for this question
A)6 b)4 c)2 d)0. You just have to replace X with given number.