Question

alguien q sepa es para hoy​

Answer 1

Respuesta:

II. b)

III. a)

IV. b)

Explicación paso a paso:

Recordemos como se puede expresar una cantidad, por ejemplo:

23000

= 2300 × 10

= 230 × 100 = 230 × 10²

= 23 × 1000 = 23 × 10³

= 2.3 × 10000 = 2.3 × 10⁴

= 0.23 × 100000 = 0.23 × 10⁵

...

0.1

= 1/10 = 1 × 10^-1

0.00052

= 0.0052/10 = 0.0052 × 10^-1

= 0.052/100 = 0.052 × 10^-2

= 0.52/1000 = 0.52 × 10^-3

= 5.2/10000 = 5.2 × 10^-4

= 52/100000 = 52 × 10^-5

...

Entonces:

II.

b) 8540000000[m]

= 85.4 × 10⁸[m]

III.

a) 33.4 × 10⁶[m] + 4.22 × 10⁶[m]

= (33.4 + 4.22) × 10⁶[m]

= 37.62 × 10⁶[m]

IV.

b) 0.00000682[m] - 4.2 × 10^-7[m]

= 68.2 × 10^-7 — 4.2 × 10^-7[m]

= (68.2 - 4.2) × 10^-7[m]

= 64 × 10^-7[m]

= 6.4 × 10^-6[m]