You need to add x1 and x2 then divide by two, then add y1 and y2
Answer:
Both form from magma that flows horizontally (D)
Explanation:
Penn answer
Answer:
1. Galileo.
2. Newton.
3. Kepler.
4. Brahe.
5. Refracting telescope.
6. Reflecting telescope.
7. Astrolabe
8. Camera.
9. Radio telescope.
Explanation:
1. Galileo: he discovered details of a lunar surface.
2. Newton: he invented first reflecting telescope.
3. Kepler: he found planets had elliptical orbits.
4. Brahe: he performed a systematic mapping of sky.
5. Refracting telescope: uses a large glass lens.
6. Reflecting telescope: uses a mirror to focus light.
7. Astrolabe: tool used to determine location of a star.
8. Camera: instrument that accumulates light from an object to show more detail.
9. Radio telescope: records sounds of stars.
The answer is “D” A volcano was nearby at one time
Answer:
Answer: "it comes from earth" is the best answer
Explanation:
All of the other answers could be right accept for "It is made by people", the answer "it comes from earth" is the best answer.