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natulia [17]
3 years ago
7

Which of the following is not a geometric sequence?

Mathematics
1 answer:
sleet_krkn [62]3 years ago
6 0

Answer:

-7,-5.8,-4.6,-3.4,-2.2

Step-by-step explanation:

A geometric sequence must have a common ratio.

-3 / 1 = -3

9 / -3 = -3

-27 / 9 = -3

81 / -27 = -3

The first sequence is a geometric sequence.

-5.8 / -7 = 0.829...

-4.6 / -5.8 = 0.793...

The second sequence is not a geometric sequence (it is an arithmetic sequence with a common difference of 1.2).

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postnew [5]

Treat this as if the inequality sign was the same thing as an equal sign. Most of the equality rules apply to inequalities (with a few exceptions)

10>\dfrac{x}{2}+4

Subtract both sides by 4

10-4>\dfrac{x}{2}+4-4

6>\dfrac{x}{2}

Multiply both sides by 2

2\times6>\dfrac{x}{2}\times2

12>x

We want the unknown variable on the left side (because it looks nicer)

x

5 0
4 years ago
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Identify each number as prime or composite.Then list all of it's factors
azamat
Prime numbers : 3, 29
Factors of 3 : 1, 3
Factors of 29 : 1, 29
Composite numbers : 6, 15, 24
Factors of 6 : 1, 2, 3 , 6
Factors of 15 : 1, 3 , 5, 15
Factors of 24 : 1, 2, 3, 4, 6, 8, 12, 24
3 0
3 years ago
A local salesman receives a base salary of $975 monthly. He also receives a commission of 7% on all sales over $1250. How much w
slava [35]

Answer:

  $17,321.43

Step-by-step explanation:

The amount of monthly income from commissions would have to be ...

  $2100 -975 = $1125

This is 7% of sales over $1250, so the sales (s) would need to be ...

  1125 = 0.07(s -1250)

  1125 = .07s -87.50 . . eliminate parentheses

  1212.50 = 0.07s . . . . add 87.50

  17,321.43 = s . . . . . . . divide by 0.07

He would have to sell $17,321.43 in a month if he needed an income of $2100.

8 0
3 years ago
The radius of a circle is 4.53 in. What is the length of the circumference of the circle?
Inessa05 [86]

Answer:

28.4484

Step-by-step explanation:

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15 times as much as 1 fith of 12
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The answer is 36.

12 / 5 = 2.4

2.4 • 15 = 36

I hope this helps!
8 0
3 years ago
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