November 11 became known, officially became a holiday in the united states in 1926, and a national holiday 12 years later.

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.