Sunday
May 19, 2013

Posts by Zack


Total # Posts: 219

Advanced Functions/Trig
Prove the identity: cos^4 x + sin^4 x = 1 - (1/2)sin^2 (2x)

Algebra
How many hands of 5 cards can be made from a standard deck of cards such that each hand contains exactly 1 red card and 4 black cards?

Chemistry 12
Determine the molar solubility of lead(II) iodide, PbI2, in 0.050 mol/L NaI. Ksp of PbI2 = 9.8 x 10^(-9)

Advanced Functions/Trig
Prove the following: sin(x+y)sin(x-y) = cos^2 (y) - cos^2 (x)

Physics
The electric field lines surrounding three charges are shown in the figure below. The center charge is q2 = -15.9 µC.

Math
80=20 divide 5

Math
What is the mathematical expression for 80 is 20 times as many as 5?

Math
How many frequent flyer point Indira earn if she traveled from new York city to Berlin ,Germany at a distance of 3,965

Writing
Compare how beaver stole fire and stealing fire from Zeus are the same

Math
Thanks

Pages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

For Further Reading

Search
Members
Community