Question

Write .0000847 in scientific notation.
a.8.47 x 10−4 Eliminate
b.8.47 x 105
c.8.47 x 10−5
d.8.47 x 106

Answer 1

Short Answer: C
Follow 2 rules.

1. when the number is between -1 and 1 count the number of zeros and add 1 to the power on 10.
2. When the number is between -1 and 1 the power on 10 is minus. 

A is not correct because there are 4 zeros. Therefore the power on the 10 should be -5 not minus 4. 

b and d are both eliminated because the power on the 10 on a number between 1 and - 1 is never plus. 

So A, B and D are all incorrect. That leaves C.

Answer C

Answer 2

Why hello there!
I have teh answer in a picture below :D.

But please!!!! Give jcherry the brainliest, because he explained it better (wayyy better) than I did. That will make me very happy :D
tysm!!