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# Christopher D.

## Mathematician and Programmer

### Washington, DC (20016)

Hourly fee \$30.00
 Background check passed as of 10/3/12 You don't pay for tutoring unless you find a good fit! You don't pay for tutoringunless you find a good fit!

## Christopher's Resources

9 - (|m| + 7) = 4    [distribute] 9 - |m| - 7 = 4    [combine constants] 2 - |m| = 4    [subtract 2] -|m| = 2    [multiply by -1] |m| = -2   No mater what number m is, the absolute value of m will always...

# The left hand page number was? (answer)

The left and right hand pages should be exactly one number apart in a book. So let's call the right page number n, then the left page number (the odd number) would be n + 1.   (n)(n + 1) = 1190 n2 + n = 1190 n2 + n + 1/4 = 1190 + 1/4 (n + 1/2)2...

# Finding the volume of by rotating the region about the x-axis (answer)

I get the two intersections at x = (1 - √13)/2, (-1 + √13)/2; let's label them a, b (respectively). If we evaluate ∫ab π (3 - x^2)2 dx (the greater function's volume), then subtract ∫ab πx2 dx (the lesser function's volume), we get π[9x - 2x3 + 1/5 x5]ab - π[1/3 x3]ab

### Christopher's Hourly Rate

Hourly Fee: \$30.00

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### Background Check Status for Christopher D.

Christopher D. passed a background check on 10/3/12. The check was ordered by another user through First Advantage. For more information, please review the background check information page.

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