Question

Por favor alguém me ajuda rapido!!!

Answer 1

Resposta:

1) I,III

Exercício I)

$-5^2-\sqrt{16}.(-10):\sqrt{5}^2\\-25-4.(-10):5\\-25+8\\-17$

2) $\frac{\sqrt{3} }{\sqrt{5}} =\frac{\sqrt{3} \sqrt{5} }{\sqrt{5} \sqrt{5}}=\frac{\sqrt{15} }5}$

3) 11

4) D

5)

a) $A=b.h\\A=5\sqrt{2}.3\sqrt{2} \\5.2.3\\30cm$

b) $A=b.h\\A= 3\sqrt{3}.2\sqrt{3}\\3.3.2\\18cm$

6) $5\sqrt{3} .2\sqrt{12} \\5\sqrt{3} .2.2\sqrt{3} \\5.3.2.2\\60$