Possuo um terreno retangular cujo comprimento é igual ao triplo da largura. desejando murar esse terreno, consultei um pedreiro para saber quantos tijolos deveria comprar. ele me disse que seriam necessários 130 tijolos por metro. então comprei 10 000 tijolos sabendo-se que a largura desse terreno é de 10,8 metros, sobraram ou faltam tijolos? se faltaram, quantos faltaram? preciso da conta

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

Answer pls man im trying to get out of summer school

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0