8.525 is rounded to 8.53 because the 5 rounds up so the 2 turns into a 3
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The expression x( x - 4 ) when expanded is x² - 4x
An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles.
When a bracket is expanded, each term is multiplied by the expression outside of the bracket.
The distributive property states that multiplying the sum of two or more addends by a number yields the same outcome as multiplying each addend separately by the number and combining the resulting products.
Consider the expression,
x( x - 4 )
Let us assume y = x( x - 4 )
Using the distributive property, a( b + c ) = ab + ac
y = x( x - 4 )
y = x · x - x · 4
y = x² - 4x
Therefore, x( x - 4 ) = x² - 4x
Therefore, the expression when expanded is x² - 4x.
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Answer:
The area of the circle is 
Step-by-step explanation:
we know that
The area of a circle subtends a central angle of 
radians
so
By proportion find the area of the circle
Answer:
5√2x2
Step-by-step explanation:
