Question

Repede va rog!!!! multumesc

Answer 1

Bună!

1) $\frac{2^{5} }{7^{n} }$ este supraunitară ⇒ 2⁵>7ⁿ

2⁵=32

7⁰=1; 7¹=7; 7²=49 (1 și 7<32 , 49>32)

B) 0 sau 1

2) $\frac{8}{19}$ ≈ 0,421

$\frac{4}{11}$ ≈ 0,363

$\frac{2}{5}$ ≈ 0,4

0,363<0,4<0,421

D) $\frac{4}{11} ; \frac{2}{5}; \frac{8}{19}$

3) $2\frac{4}{9} -(\frac{5}{8}:\frac{3}{4} )^{2} <=>$

$<=> \frac{22}{9} - (\frac{5}{8} *\frac{4}{3} )^{2} <=>$

$<=> \frac{22}{9} -(\frac{5}{6} )^{2} <=>$

$<=>^{4)} \frac{22}{9} -\frac{25}{36} = \frac{7}{4}$

$1\frac{3}{4} =\frac{1*3+4}{4} =\frac{7}{4}$

C) $1\frac{3}{4}$