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liubo4ka [24]
3 years ago
13

Arithmetic sequence

Mathematics
1 answer:
HACTEHA [7]3 years ago
8 0

Answer:18

Step-by-step explanation:

Note: Mathematicians start counting at 1, so by convention, n=1 is the first term. So we must define what the first term is. Then we have to figure out and include the common difference.

Taking a look at the examples again,

Sequence: 1, 2, 3, 4, … | Formula: a(n) = n + 1 | Recursive formula: a(n) = a(n-1) + 1, a(1) = 1

Sequence: 3, 8, 13, 18, … |Formula: b(n) = 5n - 2 | Recursive formula: b(n) = b(n-1) + 5, b(1) = 3

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Step-by-step explanation:

4 0
2 years ago
Help me understand this pls
wolverine [178]

Step-by-step explanation:

14)

Simplifying

3m + 5 = 4m -10

Reorder the terms:

5 + 3m = 4m -10

Reorder the terms:

5 + 3m = -10 + 4m

Solving

5 + 3m = -10 + 4m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '-4m' to each side of the equation.

5 + 3m + -4m = -10 + 4m + -4m

Combine like terms: 3m + -4m = -1m

5 + -1m = -10 + 4m + -4m

Combine like terms: 4m + -4m = 0

5 + -1m = -10 + 0

5 + -1m = -10

Add '-5' to each side of the equation.

5 + -5 + -1m = -10 + -5

Combine like terms: 5 + -5 = 0

0 + -1m = -10 + -5

-1m = -10 + -5

Combine like terms: -10 + -5 = -15

-1m = -15

Divide each side by '-1'.

m = 15

Simplifying

m = 15

(thank to <em>geteasysolution</em> . com

15)

xy+yz=xz

a+a+8=50

2a=42

a=21

a+8=29

6 0
3 years ago
What’s the answer? Please
sergij07 [2.7K]
X=10 since 60-50=10....
7 0
2 years ago
Read 2 more answers
What's 2|–9| – |–2|?
Greeley [361]

Answer:

I believe it is 16

Hope it helps

5 0
2 years ago
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