Respuesta :

Answer:

the correct answer is the first one.

Step-by-step explanation:

When we see a negative exponent, it tells us how many times to multiple the reciprocal of the base. In this case the base is 10 so its reciprocal would be 1/10.  We would multiple the reciprocal of 10 (1/10) 7 times.

scienscholar

Answer:

the first selection

Step-by-step explanation:

x^-1 equals to 1/x

10^-7 = 1/10^7

= 1/10 x 1/10 x 1/10 x 1/10 x 1/10 x 1/10 x 1/10