Question

se puderem me ajudar nisso, eu agradeço ​

Answer 1

Resposta:

ITEM (D)

Explicação passo-a-passo:

$\blue {{ _{\heartsuit} } \heartsuit_{\heartsuit} } \: \: \mathsf {OI, TUDO \: \: J\acute{O}IA \: ? \: \:\blue {{ _{\heartsuit} } \heartsuit_{\heartsuit} } }$

$\sf{ {(x + y)}^{2} = 60 + 2 \times 20} \\ \sf{ {(x + y)}^{2} = 60 + 40} \\ \sf{ {(x + y)}^{2} = 100} \\ \sf{(x + y) = \sqrt{100} } \\ \sf{(x + y) = 10} \\ \boxed{\red{ \sf{x + y = 10}}}$

$\mathcal{ATT : ARMANDO}$

$\mathfrak{\small03\diagup01\diagup2021} \\ \mathfrak{\small{2} :{21} \: \: pm}$