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Christopher D. for tutoring lessons in Washington DC Over 500 tutoring hours WyzAnt Tutoring Tutor Tutor United States

Christopher D.

Mathematician and Programmer

Washington, DC (20016)

Travel radius 10 miles
Hourly fee $30.00
  114 ratings
Background check passed as of 10/3/12

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absolute value question (answer)

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

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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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