Question

marque a alternativa correta

Answer 1

Resposta:

1) 5+(-1)²+7⁰

5+1+7⁰

5+1+1

+7 (letra D)

2) √49+2³-1

7+2³-1

7+8-1

+15-1

+14 (letra B)

3) x+y

x= 2

y= -5

2+(-5)

2-5

-3 (Letra B)

4) 5² = 25 (Letra B)

5+5+5+5+5 = +25

5) -1-1-1-1-1-1-1-1-1-1

-10 (Letra C)