Joshua T.

f(x) = x2; stretch vertically by a factor of 9, shift downward 2 units, and shift 2 units to the right

I am reading the book *Learning Python* by Mark Lutz, in which there's a passage I don't understand: > I also want to thank my original editor at O’Reilly, the late Frank Willison. This book was... more

What is the difference between _might have_ and _could have_?> He **might have** come. He might have studied.> He **could have** come. He could have studied.How would you describe a... more

The plural form of *cupful* is *cupfuls* and *cupsful*? Shouldn't we be pluralizing the noun (cup) instead of the adjective?

If a sample of a certian solution is dermined to have [H3O] concentration of 4.45×10^_11 moles /liter, what is its ph ?

Establishing Identitiescos2θ(1 + tan2 θ) = 1csc v − 1 csc v + 1 = 1 − sin v 1 + sin vtan u − cot u / tan u + cot u + 2 cos2 u = 1cosθ + sinθ − sin3θ / sinθ = cotθ + cos3θCould you list out all the... more