Wilbur landed his plane. The plane's elevation relative to the ground (in meters) as a function of time (in seconds) is graphed.
graph
How high was the plane after 100010001000 seconds?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?