Question

calcule :
a)20%+3,5%-5%
b)(2%)³
c)√36%
d)(5,8%)²
e)√100%

Answer 1

Olá.

A
$\dfrac{20}{100}+\dfrac{3,5}{100}-\dfrac{5}{100}$
$\dfrac{20+3,5-5}{100}$
$\dfrac{18,5}{100}$
$\boxed{18,5\%}$

B
$(\dfrac{2}{100})^3$
$\dfrac{8}{1.000.000}$
$\boxed{\dfrac{1}{125.000}}$

C
$\sqrt{\dfrac{36}{100}}$
$\dfrac{6}{10}$
$\boxed{60\%}$

D
$(\dfrac{5,8}{100})^2$
$\dfrac{33,64}{10.000}$

E
$\sqrt{\dfrac{100}{100}}$
$\dfrac{10}{10}$
$\boxed{\boxed{1}}$


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Bons estudos.