Answer:
2.8- 4.4n- 2n + 7 = -6.4n + 9.8
Step-by-step explanation:
combined like term:
-4.4n - 2n = -6.4n
2.8 + 7 = 9.8
so all you do is combined together and got -6.4n + 9.8
Taking the same test right now....I think the answer is 4.5. Hope that helps!
The distance traveled by the light in 2 hours is 2.16×10⁹ km.
<h3 /><h3>Distance:</h3>
This is the total length of space between two points covered by an object. Distance has no regard for direction as it is termed a scalar quantity. The S.I unit of distance is meter(m).
To calculate the distance traveled by the light in 2 hours, first, we need to calculate the speed of the light.
Formula:
- S = d/t................. equation 1
Where:
- S = speed
- d = distance travelled
From the question,
Given:
- d = 1.08×10⁹ km
- t = 1 hour
Therefore,
The distance traveled in 2 hours is
- d = 2×1.08×10⁹
- d = 2.16×10⁹ km
Hence, the distance traveled by the light in 2 hours is 2.16×10⁹ km
Learn more about distance here: brainly.com/question/23848540
Answer:
A
C
D
Step-by-step explanation:
