Question

Find the simplified form of the expression. Give your answer in scientific notation.

http://i1255.photobucket.com/albums/hh639/zigzagoon20001/Equation_zpsd9660561.jpg

A. http://i1255.photobucket.com/albums/hh639/zigzagoon20001/A_zpsc1738a7b.jpg

B. http://i1255.photobucket.com/albums/hh639/zigzagoon20001/B_zps4fe5372d.jpg

C. http://i1255.photobucket.com/albums/hh639/zigzagoon20001/C_zpsc53f0cae.jpg

D. http://i1255.photobucket.com/albums/hh639/zigzagoon20001/D_zpsde6b7563.jpg

A, B, C, or D? Please explain (:

Answer 1

C

Answer 2

power of 10 will get added up. so 5-7 will be -2.
and product of 9 and 6 is 56.

so answer is 5.6x 10^-1

Answer 3

Hope you got the answer.

Answer 4

Thank you (:

Answer 5

you are always wel come.