11. aflati masa unei foi de tabla cu forma de paralelipiped cu lungimea de 4m latimea de 3m si grosimea 5mm, stiind ca densitatea este 7800kg/m3

Ithink its solid. hope this

What essay do you want us to write?

There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.