2 years ago

Which quadrilaterals do you think can be decomposed into two identical triangles using only one line?

Mathematics

1 answer:

andriy [413]2 years ago

6 0

Answer:

a, b, c, d, f these all can be done with one line

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Manny can assemble a computer by himself in 50 minutes. Lucy does the same job in 45 minutes. How long will it take to assemble

jonny [76]

Manny can assemble a computer in 50 minutes. That means, in a minute Manny does $\frac{1}{50}$ job.

Lucy can assemble a computer in 45 minutes. That means, in a minute Lucy does $\frac{1}{45}$ job.

If they are working together, in a minute they will do:
$\dfrac{1}{50} + \dfrac{1}{45}$
$= \dfrac{9}{450} + \dfrac{10}{450} \text{(equalize the denominator)}$
$=\dfrac{19}{450}$
In a minute they will do $\frac{19}{450}$ job

To finish the job they will do it in $\frac{450}{19}$ minutes or about 24 minutes.

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Morgarella [4.7K]

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2 years ago

So a man goes to sleep at 8 am and wakes up on the following day and wakes up at 1 am. can you tell me what happened?

Nata [24]

Answer:

He was on an airplane.

Step-by-step explanation:

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2 years ago

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IgorC [24]

Answer:

mean= 3.28

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3 years ago

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