2 years ago

Can someone help with math please? Urgent!

Mathematics

1 answer:

bogdanovich [222]2 years ago

6 0

Answer:

I think the answer is B. I could be wrong tho, love.

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bonufazy [111]

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Step-by-step explanation:

the reason this because vertically opposite angles the equal so it's also 72

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Leni [432]

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3 years ago

Use geometric series to find the fraction of 0.8967898989

Sliva [168]

I'm guessing the repeating part is 89 at the end, so that

$x=0.8967\overline89\implies10^4x=8967.\overline{89}$

Then

$10^4x=8967+\displaystyle89\sum_{i=1}^\infty\frac1{100^i}$

$10^4x=8967+89\left(\dfrac1{1-\frac1{100}}-1\right)$

$10^4x=8967+\dfrac{89}{99}$

$x=\dfrac{8967}{10^4}+\dfrac{89}{99\cdot10^4}$

$x=\dfrac{443911}{495000}$

###

An arguably quicker way without using geometric series:

$10^4x=8967.\overline{89}$

$10^6x=896789.\overline{89}$

$10^6x-10^4x=887822$

$x=\dfrac{887822}{10^6-10^4}=\dfrac{443911}{495000}$

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3 years ago

Solve the equation.<br><br>|7x+4|=18

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There is a number line below and an equation. How do you solve the equation and then put it on the number line?

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Im sure youve figured it out by now

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