Linda has a rectangular cardboard of length 78 cm and perimeter 268 cm. she cuts a part of the cardboard to make a cubical box 15 cm long. what is the area of the cardboard left?

What is the volume of the sphere shown below with a radius of 3?

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.

What rotation was applied to triangle def to create d’e’f’?