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3 years ago

6

Which relation is a function?

1 answer:

tamaranim1 [39]3 years ago

6 0

Answer: The answer C the one in the botton the one that has the arrow Up

Step-by-step explanation:

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If z^2+1/z^2=11 , find the value of z^3-1/z^3,using only the positive value of z-1/z

vredina [299]

Hello,

Let's assume

$t=z- \dfrac{1}{z} \\\\

t^2=z^2-2+ \dfrac{1}{z^2}= 11-2=9==\ \textgreater \ t=3\\\\

t^3=z^3-3z^2* \dfrac{1}{z} +3z* \dfrac{1}{z^2} - \dfrac{1}{z^3} \\\\
=z^3 - \dfrac{1}{z^3} -3(z-\dfrac{1}{z})\\\\
z^3 - \dfrac{1}{z^3}=t^3+3t=3^3+9=27+9=36


$

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3 years ago

Need help ASAP <br><br> HELP PLEASEE

Leokris [45]

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2 years ago

If x - 7 = 10, then x = 17. This statement demonstrates:

harkovskaia [24]

C. the addition property of equality

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Mazyrski [523]

<h2><u>Answer:</u></h2>

Susan = x

Gina = 3x

Sum of their ages = 12

Susan's age = ?

We can see that,

$2x=10x = \frac{10}{2}x= 210 x = 5x=5$

Susan is <u>3</u><u> </u><u>years </u>old.

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3 years ago