Algebra
posted by Evelyn .
Astronomers measure large distances in lightyears. One lightyear is the distance that light can travel in one year, or approximately 5.88 *10^12 miles. Suppose a star is 3.2 * 10^2 lightyears from Earth. In scientific notation, approximately how many miles is it?
a. 1.88 x 10^12
b. 5.88 x 10^14
c. 3.2 x 10^15
d. 1.88 x 10^15

d = 5.88*10^12mi/lightyr. * 320lightyrs. = 1.88*10^15 miles.
Respond to this Question
Similar Questions

physics
In astronomy, distances are often expressed in lightyears. One lightyear is the distance traveled by light in one year. The distance to Alpha Centauri, the closest star other than our own sun that can be seen by the naked eye, is … 
8th grade math
Light travels approximately 5.87 X 10^12 miles in one year. This distance is called a light year. Suppose a star is 2 X 10^4 light years away. How many miles away is that star? 
8th grade math
Light travels approximately 5.87 X 10^12 miles in one year. This distance is called a light year. Suppose a star is 2 X 10^4 light years away. How many miles away is that star? 
Math
Simplify the expression. (4)^6(4)^7 My answer: 4 Simplify and give the answer in scientific notation. (5 X 10^6((3 X 10^5) My answer: 1.5 X 10^12 (3 X 10^6)(8 X 10^4) My answer: 2.4 X 10^3 Astronomers measure large distances … 
Algebra
Astronomers measure large distances in lightyears. One lightyear is the distance that light can travel in one year, or approximately 5.88 × 10*12 miles. Suppose a star is 9.8 × 10^1 lightyears from Earth. In scientific notation, … 
math
The distance that light travels in 1 year (a light year) is 5.88 times 10 Superscript 12 miles. If a star is 4.6 times 10 Superscript 7 light years from Earth, what is this distance in miles? 
algebra
Astronomers measure large distances in lightyears. One lightyear is the distance that light can travel in one year, or approximately 5.88 *10^12 miles. Suppose a star is 3.2 * 10^2 lightyears from Earth. In scientific notation, … 
math
simplify (8*10^7)(7*10^4) i think it's 5.6*10^10 simplify (3*10^6)(8*10^4) i think it's 2.4*10^3 Astronomers measure large distances in lightyears. One lightyear 5.88*10^12 mi Star is 9.8*10^1 light years from Earth in scientific … 
Algebra
Astronomers measure large distances in lightyears. One lightyear is the distance that light can travel in one year, or approximately 5.88*10^12 miles. Suppose a star is 3.2*10^12 lightyears from Earth. In scientific notation, approximately … 
Algebra
Astronomers measure large distances in lightyears. One lightyear is the distance that light can travel in one year, or approximately 5.88 *10^12 miles. Suppose a star is 3.2 * 10^2 lightyears from Earth. In scientific notation, …