Which expression is equivalent to 7 to the 3 power × 7 to the −5 power

A: 72

B: 77

C: 1 over 7 to the 2nd power

D: 1 over 7 to the 7th power

C: 1 over 7 to the 2nd power

Step-by-step explanation:

The question is:

When multiplying exponents, the base stays the same, while the power is added. In this question, the powers are 3 and -5.

The exponent will become:

Since the power is negative, it is improper. The negative can be removed by moving the power down and making it a fraction over 1.

The answer is , also written as "1 over 7 to the 2nd power".

517 caixas

Step-by-step explanation:

Em uma fazenda, os ovos são colocados em caixas de 1 dúzia. O número de caixas necessárias para embalar 6.204 ovos é:

1 dúzia = 1

Conseqüentemente:

12 ovos = 1 caixa

6204 ovos = x caixa

Multiplicação cruzada

12 x = 6204 × 1

x = 6204/12

x = 517 caixas