A 15 foot ladder leans against the side of a building. If the base of the latter is 6 feet from the bottom of the wall, which expression can be used to find the angle formed by the ladder and the ground.

What is the inverse of the function f(x)=4x+8

Use the graph of the sine function y=2sinθ shown below

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?