If the area of the circle below is 18 ft2, what is the area of the shaded sector?
1 answer:
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or
divide both sides by 2
sinΘ = -
Since the sin ratio is negative then Θ is in third / fourth quadrants
Θ = (
) =
related acute angle
Θ = ( π + ) =
or Θ = ( 2π - ) =
Answer:
Option A is correct
The function has real zeroes at x =-10 and x =-6
Explanation:
Given: The real zeroes or roots are x = -10, and x = -6
To find the quadratic function of degree 2.
where α,β are real roots. ....[1]
Here, α= -10 and β= -6
Sum of the roots:
α+β = -10+(-6) = -10-6 = -16
Product of the roots:
αβ = (-10)(-6)= 60
Substitute these value in equation [1] we have;
Therefore, the quadratic function for the real roots at x =-10 and x =-6 ;