Easy problem, giving away 10 points

The approximate pulse rate (in beats per minute) of an adult who is T inches tall is given by the formula:

p² = 348,100 / T


Find the pulse rate of an adult who is 72 inches tall. Give the answer to two decimal places.
____________ beats per minute

p^2 = 348100/ 72 =4834.7222

therefore p=sqrt of 4834.7222 =69.53 beats per minute

69.53 bpm.

p^2=348,100 / 72
p^2=4834.72222222...
sqrt(p^2)=sqrt(4834.72222222...)
p=69.53 bpm

you would take 348100/72=4834.72

p2=4834.72

sq rt(4834.72) come out to be 69.53

p=69.53

p^2= 4 834.72222
p= 69.5321

=69.53 (Ans)

Now where are my 10 points?

69.53

Square root of (348100 / 72) ...