Question

ME AJUDEM, URGENTE!

1) Sendo X=2,09.10¹⁰ e Y=5,55.10¹²
Calcule X+Y e X-Y

2) Sendo X=8,1.10²³ e Y=4.10¹⁵
Calcule X.Y e X:Y

Answer 1

Explicação passo-a-passo:

1 )

X= 2,09.10^10 E Y=5,55.10^12

X+Y

2,09.10^10 + 5,55.10^12

20,9^10+55,5^12

209+666=875

2,09.10^10 - 5,55.10^12

20,09^10 - 55,5^12

209 - 666 = 457