Find the area of the sector with a central angle of 60° and a radius of 5 inches. round to the nearest tenth.
2 answers:
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Answer:
Step-by-step explanation:
This is a hard one
We have to use the rational root theorem
= 0
We have to find all the factors of a and d and put them in a fraction
We then plug them into the equation to see if any of them work
The equation isn't true when plugging 1, but is true when plugging in 1/2
factored form of 1/2 is (2x-1)
Then we divide the original equation by (2x-1) (you can use synthetic division or long division, it would be hard to type out the process for that) to get
So now the equation is
Solve the second half of this equation using the quadratic formula to get
and
We already know the solution for the first half of the equation (1/2)
So the final answers are: