Question

a ) 9.√4+ 6.3= b) 3+7.(4²-2²) = c) √144 ÷ (4²-2²)= d) √81-3]÷(√25+1)= e) (√169-4)+(1+√25)(√49-2​

Answer 1

Resposta:

a) 36

b) 87

c) 1

d) 1

e) 39

Explicação passo-a-passo:

a ) 9.√4+ 6.3=

9.2 + 18

18 + 18

36

b) 3+7.(4²-2²) =

3+7.(16-4)

3+7.12

3+84

87

c) √144 ÷ (4²-2²)=

12 ÷ (16-4)=

12 ÷ 12=

1

d) √81-3]÷(√25+1)=

9-3 ÷ (5+1)

6 ÷ 6

1

e) (√169-4)+(1+√25)(√49-2)=

(13-4) + (1+5).(7-2)

9 + 6.5

9 + 30

39