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3 years ago

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Mathematics

1 answer:

mina [271]3 years ago

3 0

Answer:

Step-by-step explanation:

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The whole number 23 is an example of a ____ number.<br><br> prime or composite?

Katarina [22]

The answer is prime! I hope this helps you out!

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15.57 divided by 0.3

sineoko [7]

Answer: 51.9

Step-by-step explanation: 3÷15=5

3÷5=1

3÷27=9

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ivann1987 [24]

The answer should be 4, 4 can go into all of these numbers

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I need help for algebra 2 for simplify form for example (3x-2i)(3x+2i)

grandymaker [24]

Let's start...

$(3x-2i)*(3x+2i)$

$3x*3x+3x*2i-2i*3x-2i*2i$

$9x^2+6xi-6xi-4i^2$

$9x^2-4i^2$

we don't finish it yet...

$i^2=-1$

Let's replace it

$9x^2-4*(-1)$

$\boxed{\boxed{9x^2+4}}$

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