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mario62 [17]
3 years ago
13

How do I find the LCD

Mathematics
1 answer:
Tom [10]3 years ago
5 0
Multiply like such:

((a^2) -36)   x          6                                        3             x    (a^2) - 7a + 6
                           -----------              and         ----------
((a^2) -36)   x  (a^2) - 7a + 6                       (a^2)-36       x    (a^2) - 7a + 6


to get

             6                                   3 
      ---------------            x        -----------
     ( a - 1 ) ( a - 6 )             ( a - 6 )  (a + 6 )



Which totals :  (This is the answer)

                     18
               --------------
      ( a - 6 )^2 ( a + 6 ) ( a - 1 )  

I tried my best, if this isnt right sorry :P




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We conclude that the measure of that angle is 150 degrees.

<h3>How to get the measure of angle BFE?</h3>

Notice that  the measure of angle ∠BFE will be equal to:

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\displaystyle\\&#10;\begin{cases}&#10;R_1 = 3R_2\\&#10;\pi R_1^2 +\pi R_2^2=12\pi ~~~\Big|~~:\pi &#10;\end{cases} \\  \\ &#10;\begin{cases} &#10;R_1 = 3R_2\\&#10;R_1^2 + R_2^2=12 &#10;\end{cases} \\  \\ &#10;(3R_2)^2+ R_2^2=12 \\  \\ &#10;9R_2^2 + R_2^2=12 \\  \\ &#10;10R_2^2=12\\\\&#10;R_2^2 = \frac{12}{10} = \frac{6}{5}  \\  \\ &#10;R_2 =  \boxed{\sqrt{\frac{6}{5}} } \\  \\ &#10;R_1 = \boxed{3\sqrt{\frac{6}{5}} }



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