2 years ago

What is 5c+7(-c×3)-4c+5

Mathematics

1 answer:

natka813 [3]2 years ago

7 0

Answer:

Step-by-step explanation:

I guessed it

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2 years ago

Which expression shows (3*100)+(5*10)+(5*1/10) in standard form?

Ivenika [448]

Answer:

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NISA [10]

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2 years ago

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})\\\\
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$

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2 years ago

When choosing a new class color, 90 students voted for crimson and 60 voted for royal blue. What percent of these students voted

neonofarm [45]

The percentage of students voted for colour crimson
=
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hope it helps!

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2 years ago