Question

Va rog repede!
Dau coroana! ​

Answer 1

Răspuns:

$a = (\frac{3}{8} + \frac{10}{8} - \frac{11}{10} )\div \sqrt{ \frac{12}{10} \times \frac{90}{75} }$

$a = (\frac{13}{8 } - \frac{11}{10} ) \div \sqrt{ \frac{12 \times 90}{10 \times 75} }$

$a = ( \frac{65 - 44}{40} ) \div \sqrt{ \frac{1080}{750} }$

$a = \frac{21}{40} \div \sqrt{1.44}$

$a = \frac{21}{40} \div \sqrt{ \frac{144}{100} }$

$a = \frac{21}{40} \div \frac{12}{10}$

$a = \frac{21}{40} \times \frac{10}{12}$

$a = \frac{21 \times 10}{40 \times 12}$

$a = \frac{7}{4 \times 4}$

$a = \frac{7}{16}$

$a = 0.4375$

ROTUNJIRE:

$0.4$