Use the coordinates J(7, 8), K(1, 2) and L(5, 2) for △JKL. The orthocenter for △JKL is at point N. What is KN rounded to the nearest tenth?
A. 2.7
B. 4.3
C. 6.0
D. 6.3

The expression 6x2 gives the surface area of a cube, and the expression x3 gives the volume of a cube, where x is the length of one side of the cube. find the surface area and the volume of a cube with a side length of 6m

The level of co2 emissions, f(x), in metric tons, from the town of fairfax x years after they started recording is shown in the table below. x 2 4 6 8 10 f(x) 26,460 29,172.15 32,162.29 35,458.93 39,093.47 select the true statement.

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).