If the ratio of a circle's sector to its total area is 7/8, what is the measure of its sector's arc?

Check the picture below.  So the sector looks more  or less like that one.

we know a full circle has an arc of 2π, so how much is 7/8 of 2π?  well, is simply its product.

answer:

(-8,7)

explanation:

we know that  

f

(

−

3

)

=

7

therefore, if we wish to get the output as 7, in the function, we need to have our input to be -3.

looking at the function  

f

(

x

+

5

)

, what should the value of x be, such that the input in the function becomes 7?

we simply equate the terms,

x

+

5

=

−

3

x

=

−

8

thus, the point on the new function would be  

(

−

8

,

7

)

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