Determine wheter the expression is a sum of two cubes, difference of two cubes neither. 1. 8x3 - 27

that three there is a cube not an actual 3

Find the perimeter of the figure shown above. a. 50 cm c. 30 cm b. 64 cm d. 60 cm select the best answer from the choices provided a b c d

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Aroulette wheel has 38 slots in which the ball can land. two of the slots are green, 18 are red, and 18 are black. the ball is equally likely to land in any slot. the roulette wheel is going to be spun twice, and the outcomes of the two spins are independent. the probability that it lands one time on red and another time on black in any order is(a) 0.5 (b) 0.25 (c) 0.4488 (d) 0.2244