The most basic and common reason to use parentheses, brackets, and braces is to control the order of operations.
<h3>What are parentheses?</h3>
In mathematics, parenthesis is used to arrange numbers in the sequence of operations, clarify numbers, and denote multiplication.
Suppose you have an expression as:-
E = { ( 5-2 )8} 6
In this case, you would calculate 5 minus 2 first (parentheses), then multiply by 8 (brackets), then complete the part inside the curly braces, and finally multiply by 6.
Therefore the most basic and common reason to use parentheses, brackets, and braces is to control the order of operations.
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Answer:
Step-by-step explanation:
The interior angle of any polygon is:
(n-2)180
(n-2)180=3240
Dividing both sides by 180
n-2=3240/180
n-2=18
n=18+2
n=20
One interior angle is then 3240/20=162 (degrees)
What figure is the question talking about lmk ?
3x +4y = 8
y = 3/4x - 2
Substitution Method
3x + 4(3/4x -2) = 8
Distributive Property:
3x + 3x -8 = 8
Simplify:
6x -8 = 8
Add 8 to each side:
6x = 16
Divide both sides by 6"
x = 16/6
x = 2 2/3
Now replace x with that and solve for y:
y = 3/4(2 2/3) - 2
y = 2-2 = 0
y=0
