karlabb8080
karlabb8080 karlabb8080
  • 16-09-2020
  • Mathematics
contestada

Solve for r:
B=dPIEr^2

Solve for r BdPIEr2 class=

Respuesta :

xKelvin
xKelvin xKelvin
  • 16-09-2020

Answer:

C

Step-by-step explanation:

So we have the equation:

[tex]B=d\pi r^2[/tex]

And we want to solve for r.

So first, isolate the r variable. Divide both sides by dπ. So:

[tex]\frac{B}{d\pi}=\frac{d\pi r^2}{d\pi}[/tex]

The right side cancels:

[tex]\frac{B}{d\pi}=r^2[/tex]

Take the square root of both sides:

[tex]r=\sqrt\frac{B}{d\pi}[/tex]

We can rearrange the terms:

[tex]r=\sqrt\frac{B}{\pi d}[/tex]

Our answer is C.

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