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OlgaM077 [116]
3 years ago
11

Determine whether the sequence 7, 21, 35, 49 is geometric. If so, find its common

Mathematics
2 answers:
Masja [62]3 years ago
5 0

Answer:

B

Step-by-step explanation:

Firlakuza [10]3 years ago
4 0

Answer:

a. no

Step-by-step explanation:

The sequence is arithmetic.  It has a common difference of 14.

7 + 14 = 21

21 + 14 = 35

35 + 14 = 49

A geometric series has a common ratio (multiplication).  For example:

7 × 3 = 21

21 × 3 = 63

63 × 3 = 189

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Answer:

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Step-by-step explanation:

18k+30fk

Factor out 6.

6(3k+5fk)

Consider 3k+5fk. Factor out k.

k(3+5f)

Rewrite the complete factored expression.

6k(5f+3)

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Answer:

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Step-by-step explanation:

a) We are given a positive real number r. We need to wite that there is a positive real number that is smaller. Call that number s. Then r>s (this is equivalent to s<r, s is smaller than r) and s is positive (or s>0 if you prefer). We fill in the blanks using the bold words.

b) The last part claims that s<r, that is, s is smaller than r. We know that this must happen for all posirive real numbers r, that is, for any r>0, there is some positive s such that s<r. In other words, there exists s>0 such that s<r.

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Someone plz help on # 15 (idk what to do) :/
aleksklad [387]

Answer:

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sign changes from -5 to 5

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r-ruslan [8.4K]
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