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Elden [556K]
3 years ago
6

For a circle with a radius of 6 meters, what is the measurement of a central angle (in degrees) subtended by an arc with a lengt

h of
7
3
π meters?
Mathematics
2 answers:
lesantik [10]3 years ago
8 0
I hope this helps you




Arc length = central angle/360.2pi.r


7/3pi=?/360.2pi.6


?=7.10


?=70
lorasvet [3.4K]3 years ago
6 0

Answer:

70 degree

Step-by-step explanation:

Length of the arc formula = circumference of the circle * central angle / 360

circumference of the circle formula = 2\pi r

where r is the radius of the circle, given radius = 6

\frac{7\pi}{3}=2 \pi * 6* \frac{angle}{360}

 \frac{7\pi}{3}=12\pi* \frac{angle}{360}

divide by 12 pi on both sides

\frac{7}{36}=\frac{angle}{360}

Now we multiply both sides by 360

So angle = 70 degrees

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Step-by-step explanation:

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OlgaM077 [116]

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Step-by-step explanation:

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How do you simplify this?<br>x²y+xy² / y²+2/5 × xy​​​
polet [3.4K]

\huge \boxed{\mathbb{QUESTION} \downarrow}

  • How do you simplify this?
  • x²y+xy² / y²+2/5 × xy

\large \boxed{\mathbb{ANSWER\: WITH\: EXPLANATION} \downarrow}

\sf\frac{  { x  }^{ 2  }  y+x { y  }^{ 2  }    }{  { y  }^{ 2  }  + \frac{ 2  }{ 5  }   \times  xy  } \\

Factor the expressions that are not already factored.

_____

<u>How </u><u>to</u><u> factorise</u><u> </u><u>:</u><u>-</u>

<u>NUMERATOR</u> \downarrow

\sf \: x ^ { 2 } y + x y ^ { 2 }

Factor out xy.

\sf \: xy\left(x+y\right)

<u>DENOMINATOR</u> \downarrow

\sf{ y  }^{ 2  }  + \frac{ 2  }{ 5  }   \times  xy \\

Factor out 1/5.

\sf \: {\frac{1}{5}y\left(2x+5y\right)}  \\

_____

Continuing...

\sf\frac{xy\left(x+y\right)}{\frac{1}{5}y\left(2x+5y\right)}  \\

Cancel out y in both the numerator and denominator.

\sf\frac{x\left(x+y\right)}{\frac{1}{5}\left(2x+5y\right)}  \\

Expand the expression.

\sf\frac{x^{2}+xy}{\frac{2}{5}x+y}  \\

This can further simplified to as \downarrow

=    \boxed{\boxed{\bf\frac{5x\left(x  +y\right)}{2x+5y}}}

3 0
3 years ago
What is the answer to the pic​
MA_775_DIABLO [31]

Answer:

7

Step-by-step explanation:

\frac{7^{-1}}{7^{-2}}

7^{-1-(-2)}

7^{-1+2}

7^{1}

7

I used the following rules:

\frac{a^m}{a^n}=a^{m-n}

a^1=a

a \neq 0

6 0
3 years ago
What number is 30% of 20?<br><br><br>(will give Brainliest)
kirill [66]

In order to get the answer you will have to divide 30 by 100 then divide the number you get from that by 20 to receive your answer.

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20=3.33333333333*x      

(3.33333333333) to get x

20/3.33333333333=6

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Therefore your answer is "6."

Hope this helps

6 0
3 years ago
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