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A ladder is leaning against a wall. It touches the wall 60 feet from the ground. The bottom of the ladder is 20 feet from the wall . What is the Slope of the ladder ?

The base (BC) of an isosceles triangle (ABC) is also the side of a square (BCEF) in which the triangle is inscribed. A perpendicular line is drawn in the triangle from B to AC at D, forming triangle ABD. What is the ratio of triangle ABD to the square BCE...

For any element: Number of Protons = Atomic Number Number of Electrons = Number of Protons = Atomic Number Number of Neutrons = Mass Number - Atomic Number For krypton: Number of Protons = Atomic Number = 36 Number of Electrons = Number of Protons = Atomi...

# If the divisor is not a whole number, move decimal point to right to make it a whole number and move decimal point in dividend the same number of places. # Divide as usual. Keep dividing until the answer terminates or repeats. # Put decimal point direct...

Fossil fuel was formed over hundreds of millions of years ago by decomposing plants. After a long period of time, layers and layers of rock, mud, and sand covered the dead plants thousands of feet under the earth, which made them fossilized