8th Grade Math - Fall FINAL Review

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form. It is written as a product of a number (between 1 and 10) and a power of 10.

0.052 = 5.2 × 10^{-2}

To order numbers from greatest to least, compare their values and arrange them starting from the highest value down to the lowest.

√5, 2.2, 81%, 1/12, -2.02

The distance between two points (x1, y1) and (x2, y2) is given by the formula: d = $$\text{sqrt}((x2 - x1)^2 + (y2 - y1)^2)$$ .

Distance = $$\text{sqrt}((4 - 1)^2 + (6 - 2)^2) = 5$$ units.

An equation is a mathematical statement that asserts the equality of two expressions, typically containing variables.

x = 3.

A missing side is a side length that needs to be calculated based on given information, such as other side lengths or angles.

The missing side is 80 in.