Question

Can you answer these? For me i need help.

Answer 1

`1.\\2\pi r=C\ \ \ \ |:2\pi\\\\\boxed{r=(C)/(2\pi)}\\\\2.\\(1)/(2)bh=A\ \ \ \ |\cdot2\\\\bh=2A\ \ \ \ |:h\\eq0\\\\\boxed{b=(2A)/(h)}\\\\3.\\mx+b=y\ \ \ \ |-b\\\\mx=y-b\ \ \ \ |:m\\eq0\\\\\boxed{x=(y-b)/(m)}`

`4.\\(1)/(2)(a+b)h=A\ \ \ \ \ |\cdot2\\\\(a+b)h=2A\ \ \ \ |:(a+b)\\eq0\\\\\boxed{h=(2A)/(a+b)}\\\\5.\\\pi r^2h=V\ \ \ \ |:\pi r^2\\eq0\\\\\boxed{h=(V)/(\pi r^2)}\\\\6.\\2\pi r^2+2\pi rh=SA\ \ \ \ |-2\pi r^2\\\\2\pi rh=SA-2\pi r^2\ \ \ \ |:2\pi r\\eq0\\\\\boxed{h=(SA-2\pi r^2)/(2\pi r)}`

`7.\\rt=d\ \ \ |:r\\eq0\\\\\boxed{t=(d)/(t)}\\\\8.\\nRT=PV\ \ \ \ |:nR\\eq0\\\\\boxed{T=(PV)/(nR)}\\\\9.\\(FV-OV)/(T)=A\ \ \ \ |\cdot T\\eq0\\\\FV-OV=AT\ \ \ \ |-FV\\\\-OV=AT-FV\ \ \ \ |\cdot(-1)\\\\\boxed{OV=FV-AT}\\\\10.\\(Wtc)/(1000)=C\ \ \ \ |\cdot1000\\\\Wtc=1000C\ \ \ \ |:tc\\eq0\\\\\boxed{W=(1000C)/(tc)}`