A certain star is 19x102 light years from the Earth. One light year is about 5.9x102 miles. How far from the earth (in miles) is the star?
The star is miles from Earth.
(Use scientific notation. Use the multiplication symbol in the math paleme as needed.)

25/6 hope it : )

step-by-step explanation:

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!