Answer:
is good by his guan yes is help to me
The domain should be
(-∞, ∞) {y|y ∈ R}
<span>And the range is:
{6}
</span>
........................................d
1) area of a cicular pool
area of a circle=πr^2 d=2.5 then r=2.5/2
A=3.14 *(2.5/2)^2
A=4.906m^2 A=4.9m^2
2) arae of a coin
<span>(if i read it right d=15mm?)
</span>A=πr^2 d=15 then r=15/2
A=3.14*(15/2)^2 =176.6mm^2
Rest all are same problems u try to solve it




solid line. we shade above the line

the dotted line. shadow above the line
Answer in the attachment (the first graph).