Astronomy Applications

[nycmathguy]

College Algebra
Chapter 2

I need help number 159.

160 below.

93, 000, 000 becomes 9.3 x 10^(7)

You say?

 

[MathLover1]

159.
convert year to sec
1 yr = 31,556,952 sec
multiply by 186,000 miles/sec
31,556,952sec*186,000 miles/sec=5869593072000miles
approximately 5.87 trillion miles

160. correct

 

[nycmathguy]

159.
convert year to sec
1 yr = 31,556,952 sec
multiply by 186,000 miles/sec
31,556,952sec*186,000 miles/sec=5869593072000miles
approximately 5.87 trillion miles

160. correct

Thank you so much for your help with 159. I was unable to work it out.