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3 years ago

Plz help illl give brainlist to you

Mathematics

2 answers:

harina [27]3 years ago

7 0

33 girls and 57 boys
so total = 33 + 57 = 90 players

20% left handed = 90 x 0.2 = 18

answer
18 left-handed players

yulyashka [42]3 years ago

3 0

Add all the players first 33 + 57 = 90
Use the 20% and then multiply it by 90
20% x 90 = 18
18 Kids should be your answer

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Let f(x)=5x+5 find f(-1)<br><br>I need your help with this. please help me

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3 years ago

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3 years ago

Which of the following constants can be added to x2 + x to form a perfect square trinomial?

solmaris [256]

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<h3>What is a quadratic equation?</h3>

It's a polynomial with a value of zero. There exist polynomials of variable power 2, 1, and 0 terms. A quadratic equation is an equation with one statement in which the degree of the parameter is a maximum of 2.

The expression is x² + x.

Then the constant should be added to form a perfect square trinomial.

Then the constant will be

The square of the half of the coefficient of the variable x is to be added to make a perfect square.

Then the constant will be 1/4.

Then the perfect square will be

$\rm \rightarrow x^2 + x + \dfrac{1}{4}\\\\\\\rightarrow x^2 + 2 \times \dfrac{1}{2} x + \left (\dfrac{1}{2} \right )^2\\\\\\\rightarrow \left (x + \dfrac{1}{2} \right)^2$

More about the quadratic equation link is given below.

brainly.com/question/2263981

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2 years ago