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aronhaile
18.07.2019 •
Mathematics
Determine if the sequence is arithmetic. if it is, find the common difference. is the sequence a function ? 6.) -7, -10, -11, -13, determine if the sequence is geometric. if it is, find the common ratio 8.) 4, 20, 100, 500, 10.) -30, -45, -50, -65, determine if the sequence is geometric. if it is, find the common ratio. is the sequence a function? 12.) -7, -14, 21, -28,
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Ответ:
Common difference exists if the difference between any two consecutive values in a sequence is the same while common ratio exists if the ratio between any two consecutive values In a sequence are the same.
Common ratio = r2/r1 = r3/r2 = r4/r3... Common difference = d2 - d1 = d3 - d2...1.)
For the sequence : -7, -10, -11, -13,
-10 - (-7) = - 11 - (-10)
-10 + 7 = - 11 + 10
-3 ≠ - 1
Hence, the sequence is not arithmetic
2.)
For the sequence : 4, 20, 100, 500
20/4 = 100/20 = 500/100
5 = 5 = 5
Hence, the sequence is geometric
3.) For the sequence : 30, -45, -50, -65
-45/30 ≠ - 50/45 ≠ - 65/50
Hence, the sequence is not geometric
4.)
For the sequence : -7, -14, 21, -28, ...
-14 - (-7) = 21 - (-14)
-14 + 7 = 21 + 14
-7 ≠ 35
Hence, the sequence is not arithmetic
Therefore, arithmetic and geometric sequences do have a common difference and common ratio respectively.
Learn more :link
Ответ:
Ответ:
If a large cloud encounters a colder air mass, it tends to rise up in the sky. On the other hand, the cold air mass sinks toward the surface. This happens because temperature is a property that affects the density of substances. Colder substances are denser than warm substances.
Step-by-step explanation:
https://www.slader.com/discussion/question/what-might-happen-if-a-large-cloud-in-the-sky-suddenly-encountered-a-colder-air-mass-with-a-temperat/