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Dovator [93]
2 years ago
10

I need help to find the lcm of 81 and 3

Mathematics
2 answers:
velikii [3]2 years ago
8 0

Answer:

81 is the LCM of 81 and 3

Step-by-step explanation:

81 is the smallest (least) number that both (common) 81 and 3 "go into" (multiple)

81 goes into 81.

3 goes into 81.

81 is the smallest number that they both go into.

Lina20 [59]2 years ago
4 0

Hi there,

please see below for solution steps :

________

<u></u>\ast<u> Key moment to solving this problem</u> :

  • the LCM stands for least common multiple

Okay. Now, what is the lcm of 3 and 81?

One way to find the lcm is : list several multiples of each number.

However, it's not a really efficient way, because listing all the multiples of 3 until we get to 81 is time-consuming!

So we can ask ourselves one question : <em>Is 81 divisible by 3?</em>

Sure! with this in mind, let's ask ourselves another question : <em>what is the lcm of 81 and 3?</em>

The answer to that is \boldsymbol{81}.

Hope the answer - and explanation - made sense to you,

happy studying !!                                                                 \bold{Frozen \ melody}

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Answer:

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Step-by-step explanation:

Given the value of x. we have to find the correct value of cosx.

x=\frac{2\pi}{3}

Now, we have to find the exact value of cos{\frac{2\pi}{3}}

cos{\frac{2\pi}{3}}=cos(\frac{\pi}{2}+\frac{\pi}{6})

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Now, we have to find the reference angle of x=\frac{2\pi}{3}.

Since the angle x=\frac{2\pi}{3} lies in second quadrant, the reference angle formula is

Reference angle= \pi-given angle.

                           =\pi-\frac{2\pi}{3}=\frac{\pi}{3}

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3 years ago
Hugh has to earn at least $400 to meet his fundraising goal. He has only 100 books that he plans to sell at $8 each. Which inequ
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Hope this helps you :)

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Step-by-step explanation:

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Answer:

The equation of line for given points is y = - 40 x - 42  

Step-by-step explanation:

Given two points as :

( -1 , - 2 )  and ( 3 , - 162 )

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