An electrician charges $15 for a service call plus $25 per hour. The total bill for a recent job was $165.
2 answers:
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Answer:
Step-by-step explanation:
Remember that
Area of Circle =
They told us that for this circle, the area is
If you put it back into the formula for area of a circle we get:
Area of Circle =
Divide both sides by .
144 =
Now we want to solve for r (r = radius).
You need to square root each side
So now we know the radius, metres
Also remember that
Diameter =
So,
Diameter = 2 times 12 = 24 metres
See attachment although I gather this is not your question. I did the graph(s) for the function,
