Homework Help: algebra B

Posted by Nancy on Friday, February 11, 2011 at 10:13pm.

Using the formula, w = cr^-2,

solve for r. An object weighs 100lbs. What value of C will result in r = 3963?

I have another question similar, but if someone could guide me in this one, I can figure out the other one.

Thanks,

algebra B - PsyDAG, Saturday, February 12, 2011 at 1:14pm
100 = c(3963)^-2

3963^-2 = √3963 = 63 (approx.)

100 = 63c

1.59 = c

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