9. A sector of a circle has central angle
and area

. Find the radius of the circle​

Step-by-step explanation:

Begin with the formula for the area of a sector:

and we are given everything except the radius, r. Filling in what we know:

and then start the simplification process. I began by dealing with the fraction over a fraction thing, which simplifies the equation to:

then isolate the r-squared:

. Canceling out the π's and the 8's leaves us with simply

r² = 49 so

r = 7

according to this law, when unemployment goes up by 1%, gdp drops by 2%. in the question, unemployment rate goes from 2% to 5%, meaning unemployment goes up by 3%, so the gdp drops by 6%. thus the effect is a drop in gdp by 6%.

step-by-step explanation:

∠cbe and ∠deb are same-side interior angles.

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