3 years ago

WILL GIVE BRAINLIEST Algebraic expression for a% of b

1 answer:

4 0

"percent" means "out of a hundred"
1% = 1/100, 2% = 2/100, etc
So, a% is a/100
a% of b is a% times b
So, a% of b = (a/100)b
Another way to write it is ab/100

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ANSWER

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EXPLANATION

To write $f(x)=x^2-10x+9$ in the form $f(x)=a(x-h)^2+k$ , we have to complete the squares.

We add and subtract half the coefficient of $x$ square.

$f(x)=x^2-10x+(-5)^2-(-5)^2+9$

The first three terms of the function is now a perfect square.

$f(x)=(x-5)^2-25+9$

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