Answer:

Step-by-step explanation:
The equation of a circle is
where
is the center and
is the radius, thus:

This means that our equation for the given circle is 
3. Is going to be 7*12= 84 inches because the tree is drawn as 7 inches in the scale and for every inch in the scale, it is 12 inches in real life.
4. Is going to be similar since for every inch on the map the meter in real life is 30 so 2.5*30= 74 meters.
Hope I explained it enough that you understand the concept and not just gave you an answer.
Answer:
x = 3^11
Step-by-step explanation:
log3(x) =11
Raise each side to the power of 3
3^log3(x) =3^11
This eliminates the log
x = 3^11
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Answer:
-3
Step-by-step explanation:
y=mx+ b
m is slope.
mark brainliest