The angle of elevation of an airplane is 9. the distance to the plane is 21 km. how high is is the plane?

If a cylinder has a volume of 1846.32 and has a length of 12cm what would the radius be?

16x24 equals how many square feet

You randomly draw a marble out of a bag that contains 202020 total marbles. 121212 of the marbles in the bag are blue.

What is 9 1/6 - 3 5/8

Which metal most likely conducts electricity best

The difference of 7 and a number x is 10

If g (x) = 4x^2-3x+2 find g (-2)

there were 84 people on the train 43 people got out then 61 people went on the train and 22 people got off the train. how many people are on the train now?

How many quarts can be held in 19 gallons

How do you write a polynomial in standard form that represents the area of the shaded region of a rectangle when on the outside there are (x+4) and (x+7) and the inside the larger rectangle has (x+2) and (x+5) ...