Fie ABCDA'B'C'D' o prisma patrulatera regulata cu AB= 4 radical din 2, iar O este centrul bazei ABCD. Stiind ca A'O= 5 cm, calculati: a) lungimea inaltimii prismei; b)aria sectiunii diagonale a prismei. VA ROG REPEDE.

Abag of popcorn contains 483 calories and servers 3.5 people. how many calories are in each serving.

The number of nails of a given length is normally distributed with a mean length of 5.00 in, and a standard deviation of 0.03 in. find the number of nails in a bag of 120 that are less than 4.94 in. long.

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?