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kakasveta [241]
2 years ago
7

Which of the binomials below is a factor of this trinomial? x2 + 6x + 8

Mathematics
1 answer:
navik [9.2K]2 years ago
3 0

Answer:

(x+4)(x+2)

Step-by-step explanation:

Distributive property of 2 binomials:

First, outer, inner, last

(a+b)(c+d) = ac+ad+bc +bd

Factor x^2 into x*x

Factor 8 into 2*2*2

Find what two numbers add up to 6 and multiply to get 8

1 and 8 do not work because they add up to 9.  2 and 4 work because they add up to 6.  

Check: (x+4)(x+2)

First:  x*x = x^2

Outer: 2*x

Inner: 4*x

Last: 2*4 = 8

Add together: x^2+2x+4x+8 = x^2+6x+8

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lara31 [8.8K]

The equation that is equivalent to S=pi r^2 h is h = S/pir^2

<h3>Subject of formula</h3>

This is a way of representing a variable with another. Given the equation

S=pi r^2 h

We are to make 'h" the subject of the formula.

Divide both sides by pir^2

S/pir^2 =pi r^2 h/pir^2

h = S/pir^2

Hence the equation that is equivalent to S=pi r^2 h is h = S/pir^2

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pashok25 [27]

Answer:

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Step-by-step explanation:

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lesya [120]

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<h2>y = 0.5x</h2>

Step-by-step explanation:

\dfrac{y}{x}=a\to y=ax\\\\\text{We have}\ x=1,\ y=0.5.\\\\\text{Substitute:}\\\\a=\dfrac{0.5}{1}=0.5\\\\\text{Therefore}\ y=0.5x

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Answer:

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Step-by-step explanation:

The radius of the circle is equal to the square root of 81

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