Do the following lengths form a right triangle?
a= 6.4, b= 12, c= 12.2

The way you find if they form a right triangle is by using the Pythagorean Theorem, a^2 + b^2 = c^2:

(6.4)^2 + (12)^2 = (12.2)^2

40.96 + 144 = 148.84

184.96 ≠ 148.84

Therefore, this is not a right triangle.

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

The difference is 5,100m?