how many cubes are in a 5x5x5 cube
Professor's Cube There are 98 pieces on the exterior of the cube: 8 corners, 36 edges, and 54 centers (48 movable, 6 fixed).
Arithmetic progression This sum can be found quickly by taking the number n of terms being added (here 5), multiplying by the sum of the first and last number in the progression (here 2 + 14 = 16), and dividing by 2:
Standard deviation Let X be a random variable with mean value Î¼:
Olympic-size swimming pool 2,500 m3 (88,000 cu ft) in cubic units. About 2 acre-feet.
Pi Ï€ is commonly defined as the ratio of a circle's circumference C to its diameter d:[9]
Exponentiation Any nonzero number raised to the 0 power is 1:[11]