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Korolek [52]
3 years ago
13

Find the common difference for the arithmetic sequence. 1.7, 2.7, 3.7 4.7.....

Mathematics
1 answer:
Anni [7]3 years ago
5 0

Answer:

Step-by-step explanation:

You do not need to where the formula comes from but, just for fun, here’s a hint

To add up the numbers 1 to 10

Write out the numbers

1 2 3 4 5 6 7 8 9 10

Write them backwards

10 9 8 7 6 5 4 3 2 1

Add up both lists

11  11  11  11  11  11  11  11  11 11

This is 10 × 11 = 110

But this is twice the sum as two lots were added together

So the sum of the numbers 1 to 10 is 110 ÷ 2 = 55

 

ArSeqSum Notes fig4, downloadable IGCSE & GCSE Maths revision notes

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kakasveta [241]
(-3,5)(-2,3)
slope = (3 - 5) / (-2 - (-3) = -2 / 1 = -2

y = mx + b
slope(m) = -2
use either of ur points...(-2,3)....x = -2 and y = 3
now we sub and find b, the y int
3 = -2(-2) + b
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8 0
3 years ago
Solve this equation using order and operations:
exis [7]

Answer:

(1680)

Step-by-step explanation:

Simplify the following:

3 (10 (6 + 2 (22 + 8) - 10))

| 1 |  

| 2 | 2

+ | | 8

| 3 | 0:

3 (10 (6 + 2×30 - 10))

2×30 = 60:

3 (10 (6 + 60 - 10))

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| 6 | 6

- | 1 | 0

| 5 | 6:

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10×56 = 560:

3 (560)

3 (560) = (3×560):

(3×560)

3×560 = 1680:

Answer: (1680)

5 0
3 years ago
Why do some numbers from perfect squares and others do not? <br> 3,5,6,8
Damm [24]

Answer:

The perfect squares are the squares of the whole numbers: 1, 4, 9, 16, 25, 36, 49, 64, 81, 100....

Step-by-step explanation:

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8 0
3 years ago
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rodikova [14]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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photoshop1234 [79]

Answer:

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  • y-intercept: 1

Step-by-step explanation:

Solve for y to put the equation in slope-intercept form.

  3x = 4y -4 . . . . . eliminate parentheses, collect terms

  3x +4 = 4y . . . . . add 4

  y = 3/4x +1 . . . . . divide by 4

The slope is the x-coefficient: 3/4.

The y-intercept is the constant: 1.

3 0
3 years ago
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