Each leg of a 45-45-90 triangle has a length of 6 units what is the length of its hypotenuse

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

What is the value of n in the equation -1/2(2n+4)+6=-9+4(2n+1)

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?