Sunday
May 19, 2013

# Posts by Zack

Total # Posts: 219

Algebra 2
Simplify sqrt80 -3 Sqrt63 - sqrt125 - sqrt175

How do I verify this identity? (I've tried a lot but it's just not working) (sin2x + sin2y) = 2sin(x+y)cos(x-y)

Physics to be solved
a horizontal scaffold, of length 2.00 m and uniform mass 50.0 kg, is suspended from a building by two cables. The scaffold has dozens of paint cans stacked on it at various points. The total mass of the paint cans is 79.5 kg. The tension in the cable at the right is 837 N. How...

Physics
The driver of a car on a horizontal road makes an emergency stop by applying the brakes so that all four wheels lock and skid along the road. The coefficient of kinetic friction between tires and road is 0.39. The separation between the front and rear axles is L = 4.1 m, and t...

Calculus
evaluate each limit, if it exists [(2+x)^2 - 16]/ (x-2) what do I do?

Chemistry
given: 25.9 kJ + 1/2 H2 + 1/2 I2 => HI how much energy is needed for the reaction of 4.57x10^24 molecules of iodine, I2, with excess hydrogen, H2?

is there more?

13 ways 2q1d0n 2q0d2n 0q0d12n 1q1d5n 1q0d7n 0q6d0n 0q1d10n 1q3d1n 0q3d6n 0q5d2n 0q4d4n 1q2d3n 0q2d8n