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lesya [120]
3 years ago
13

Nth triangular number = 2 (n + 1)

Mathematics
1 answer:
mina [271]3 years ago
7 0

Answer:

a) 2(n+1)

=2(12+1)

=2*13

=26

b) 2(n+1)

=2(50+1)

=2*51

=102

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The first table, representing <em>f</em>(<em>x</em>), is linear.  The data have a constant rate of change or slope:
<em />(between the first two points):  <em>m</em> = (<em>y</em>₂ - <em /><em>y</em>₁)/(<em>x</em>₂ - <em>x</em>₁) = (22-18)/(-1--2) = 4/(-1+2) = 4/1 = 4.  The rate of change  between any two points is the same:
(between the last two points):<em>  m</em> = (34-30)/(2-1) = 4/1 = 4.

The second table, representing <em>g</em>(<em>x</em>), is exponential.  The data points are multiplied by the same constant between successive points.  2*2 = 4; 4*2= 8; 8*2 = 16, etc.
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2 years ago
Simplify the expression: (3 − 4i) + (7 − 6i). 4 − 2i 4 − 10i 13 − 2i 10 − 10i
yulyashka [42]

Equivalent expressions are expressions of equal values

The simplified expression of (3 - 4i) + (7 - 6i) is 10- 10i

The expression is given as:

(3 - 4i) + (7 - 6i)

Remove brackets in the above expression

3 - 4i + 7 - 6i

Rewrite the expression by collecting the like terms

3 + 7- 4i  - 6i

Next, evaluate the like terms

10- 10i

Hence, the simplified expression of (3 - 4i) + (7 - 6i) is 10- 10i

Read more about equivalent expressions at:

brainly.com/question/2972832

7 0
2 years ago
Jesus joseph maryian christ, what is this math problem ? 25 points
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2 years ago
Which scatter plot represents the data shown in the table?
svetoff [14.1K]
The answer would be A :)
3 0
2 years ago
15 pts! Will Give Brainliest Halp! PLZ
aivan3 [116]

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so a/b / c/d = a/b * d/c

-8/2 * -3/6

1. cross - cancel common factor 2

4/2 * -3/3

2. Multiply

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3. multiply numbers

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4. Apply fraction rule -a/b=- a/b

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5. divide

= -(-2)

6. Apply rule -(-a)=a

=2

Your answer would be 2


3 0
3 years ago
Read 2 more answers
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