Question

( - √49/81 + √144) ÷ (√9/25 - 15/20). Passo a passo por favor

Answer 1

Explicação passo-a-passo:

( - √49/81 + √144) ÷ (√9/25 - 15/20)=

( - √7²/9² + √12²) ÷ (√3²/5² - 15/20)=

( - 7/9 + 12) ÷ (3/5 - 15/20)=

( - 7/9 + 12) ÷ (12-15)/20)=

( -7+9*12)/9 ÷ (-3/20)=

( -7+108)/9 ÷ (-3/20)=

101/9 ÷ (-3/20)=

101/9 *(-20/3)=

-(101*20)/(9*3)=

-2020/27=-74.81