Cavar um buraco retangular de 1 m de largura de modo que o volume cavado seja de 300 m³. Sabendo que cada m² de área cavada custa 10 reais e cada metro de profundidade custa 30 reais, determinar as dimensões do buraco de modo que seu custo seja mínimo.

answer: 2530

hope this

you'll have to attache the image of the bar graph in order for us to answer : )

step-by-step explanation:

answer: as the alternate interior angles are congruent, the opposite

sides of quadrilateral abcd are parallel.

step-by-step explanation:

so, the missing phrase in elba's proof is: alternate

interior angles

let's break this statement up so we can find the answer:

by cpctc, angle abd is equal to angle cdb and angle adb is

equal to angle cbd.

since

angle abd is equal to angle cdb, this means that they are alternate interior angles

so, the correct answer would be: as the alternate interior angles are congruent, the opposite

sides of quadrilateral abcd are parallel.

two interior angles which lie on opposite sides of a

transversal   and on different parallel

lines and are called alternate interior angles.