MATHEMATICS MIDDLE SCHOOL

Which sets of numbers represent geometric sequences? Check all that apply.2/5,2/10,2/20,2/40...

11/12,8/12,5/12,2/12

25, 19, 13, 7, ...

4, 12, 36, 108, ...

–5, 5, –5, 5, ...

–3, 0, 3, 6, ...

–8, –2,1/2.1/8...

Answers

Answer 1
Answer:

Answer:

2/5,2/10,2/20,2/40...

4, 12, 36, 108, ...

–5, 5, –5, 5, ...

Step-by-step explanation:

These 3 sets represent a geometric sequence.

A geometric sequence is a series of numbers where each number is obtained by MULTIPLYING the same fixed number to the previous number.

So, in the first sequence: 2/5,2/10,2/20,2/40...

The multiplying factor is 1/2.

In the second sequence: 4, 12, 36, 108, ...

The multiplying factor is 3

In the 3rd sequence: –5, 5, –5, 5, ...

The multiplying factor is -1.

Most of the other sequences are not geometric sequences, but arithmetic sequences (where the next term is obtained by ADDITION).
Answer 2
Answer:

the one above me is correct

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Simplify (x − 4)(x2+ 5x + 2). x3 + x2 − 18x − 8 x3 + x2 + 22x − 8 x3 + 9x2 − 18x − 8 x3 + 9x2 + 22x − 8

Answers

Answer:

{x}^(3) + {x}^(2) - 18x - 8

Step-by-step explanation:

The given expression is:

(x - 4)( {x}^(2) + 5x + 2)

We need to expand using the distributive property:

x( {x}^(2) + 5x + 2) - 4( {x}^(2) + 5x + 2)

This implies that:

{x}^(3) + 5 {x}^(2) + 2x - 4 {x}^(2) - 20x - 8

Regroup similar terms and simplify:

{x}^(3) + {x}^(2) - 18x - 8

The first choice is correct.

Answer:  A) x³ + x² - 18x - 8

Step-by-step explanation:

  (x - 4)(x² + 5x + 2)

= x(x² + 5x + 2) - 4(x² + 5x + 2)

=   x³  + 5x² + 2x - 4x² - 20x - 8

=   x³ + (5x² - 4x²) + (2x - 20x) - 8

=  x³  +       x²        +     -18x      - 8

15 points because I need it quickly!! I will give brainliest to first answerMiss Holman gave a 90-cent tip to a waitress for serving a meal costing $6.00, before tax. a) What percent of the bill was her tip? b) If tax was 6.25%, what was the total bill including tip?

Answers

Answer:

12.60

Step-by-step explanation:

In a fraction times fraction problem, do you multiply the denominator?

Answers

yes, you multiply the numerator by the numerator and the denominator by the denominator

Can someone help me please

Answers

Answer:

D

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

morgan subscribe to a website for processing her digital pictures. The subscription iis $5.95 per month and 4 by 6 prints are $0.19 each. How many prints did Morgan purchase if the charge for January was $15.83.

Answers

she had 52 prints. 
15.83-5.95=9.88
9.88/.19= 52, so theres your answer:)

Can you answer this plzz

Answers

Answer:\

x ≥ 6

Step-by-step explanation:\

4x -30≥ - 3x + 12    

add 30 to bot size

4x - 30 + 30 ≥ -3x + 12 + 30

simplify

4x  ≥ -3x +  42

add 3x to bot  sides

4x +3x ≥ -3x+42+3x

simplify

7x ≥ 42

divide   bot sides by 7

7x/7 ≥ 42/7

simplify

x ≥ 6

 
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