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IgorLugansk [536]
3 years ago
6

The sequences below are either arithmetic sequences or geometric sequences. For each sequence, determine whether it is arithmeti

c or geometric, and write
the formula for the nth term e, of that sequence
Sequence
Type
term formula
(a) 13, 16, 19
Arithmetic
Geometric

(6) 2, 10, 50
Arithmetic
Geometrie
Sum
o
el

Mathematics
1 answer:
ruslelena [56]3 years ago
5 0

Answer:

a) Arithmetic    yₙ = 3*(n - 1) + 13

b) Geometric   yₙ = 2*5⁽ⁿ⁻¹⁾

Step-by-step explanation:

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Number 2 please thanks
Alex

Answer:

c) 2x+1

Step-by-step explanation:

Let's x be number of Nick's goals.

Emma has scored 1 more than twice the number of Nicks.

1 more is +1, of twices the number is 2x.

so 2x+1=15

6 0
3 years ago
Read 2 more answers
The sum of three numbers is 105 . The third number is 3 times the first. The second number is 5 more than the first. What are th
Ivahew [28]
The answer is 17+9+79<span />
3 0
4 years ago
What is the percent of change of 24 songs to 78 songs
Novosadov [1.4K]
Subtract 24 to 78. Divide the answer by 24. Multiply it by 100. So the final answer is 225%.
We have a starting value of 24. In order to reach 78, we need to multiply a number to 24 and add it to 24.
Making the equation 24 + 24P = 78.
Transpose 24 to the other side, you’ll get 24P = 78--24.
24P=54.
Divide both sides by 24, you’ll get P = 2.25
Multiply 2.25 by 100 to get the percentage.
So, you’ll get the final answer 225%



3 0
3 years ago
Solve the simultaneous equations:<br><br> 3a-2b=14 <br> 12a+9b=39
kirill [66]
Use elimination
Multiply first equation by 4
12a - 8b = 56
12a + 9b = 39
Subtract both
-17b = 17
b = -1
Plug in -1 for b
3a - 2(-1) = 14
3a = 12, a = 4
Final answer: a = 4, b = -1
5 0
3 years ago
a bookstore sold 160 magazine . yesterday the bookstore sold 3\8 of these copies how many were sold yesterday
pishuonlain [190]

Answer:

60 is your answer to your question

4 0
4 years ago
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