
Always do what's in parentheses first:

Then do multiplication and division:

Then addition and subtraction last:
Answer:

Step-by-step explanation:
Given



Required
Coordinates of B
This question will be answered using line ratio formula;

In this case:



Solving for 
becomes



Comparing the right hand side to the left;
-- (1)
-- (2)
Solving (1)


Solving (2)


Hence;

Answer:
I believe it is A
Step-by-step explanation:
Answer:
112in
Step-by-step explanation:
Answer:
45 square units.
Step-by-step explanation:
Applying the pythagoras theorem:
Base of the bigger triangle =
=
= 12 units
Area of a triangle is given by
× base × height
The area of the bigger triangle is
× 12 × 9 = 54 square units.
The area of the smallest triangle is
× (12 - 10) × 9 = 9 square units.
The area of the figure( required triangle) is 54 - 9 = 45 square units.