Mathematics, 24.03.2020 03:35, adeoluwa
Today, we know that Copernicus was right: the stars are very far from Earth. In fact, stars are so distant that a new unit of length—the lightyear— was created to measure their distance. A light-year is a unit of length equal to the distance that light travels through space in 1 year. Because the speed of light through space is about 300,000 km/s, light travels approximately 9.46 trillion kilometers in one year.
Even after astronomers figured out that stars were far from Earth, the nature of the universe was hard to understand. Some astronomers thought that our galaxy, the Milky Way, included every object in space. In the early 1920's, Edwin Hubble made one of the most important discoveries in astronomy. He discovered that the Andromeda galaxy, which is the closest major galaxy to our own, was past the edge of the Milky Way. This fact confirmed the belief of many astronomers that the universe is larger than our galaxy.
Why was Edwin Hubble's discovery important?
Answers: 2
Mathematics, 20.06.2019 18:04, lilsneak13
Write a polynomial that fits the description: a third-degree polynomial with leading coefficient -4
Answers: 1
Mathematics, 21.06.2019 19:00, Maya629277
Zroms according to the synthetic division below, which of the following statements are true? check all that apply. 352 -2 6 -12 12 2 4 0 i a. (x-3) is a factor of 2x2 - 2x - 12. b. the number 3 is a root of f(x) = 2x2 - 2x - 12. c. (2x2 - 2x - 12) = (x + 3) = (2x + 4) d. (2x2 - 2x-12) - (x-3) = (2x + 4) e. (x+3) is a factor of 2x2 - 2x - 12. o f. the number -3 is a root of fx) = 2x2 - 2x - 12. previous
Answers: 2
Mathematics, 21.06.2019 19:00, masonsee4ytube
Daniel expanded the expression as shown below -2(-8x-4y+3/4)=-10x-8y-11/4 what errors did he make? check all that apply
Answers: 3
Today, we know that Copernicus was right: the stars are very far from Earth. In fact, stars are so d...
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