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olga_2 [115]
3 years ago
6

Solve the system of equations below.

Mathematics
2 answers:
Ostrovityanka [42]3 years ago
5 0
C - no solution
you take the second solution and times the entire equation by -1
then simply
and you get 0x + 0y = 20
expeople1 [14]3 years ago
5 0
The correct answer is C ^^
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Step-by-step explanation:

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3 years ago
Work out an expression for the nth term for this sequence:<br><br> 23,35,47,49
notsponge [240]
<h3>Answer:</h3>

a_n = 23 +12(n -1)

<h3>Explanation:</h3>

The nth term of an arithmetic sequence is explicitly defined as a_n = a_1 +d(n -1) where a_1 is the first term of the sequence and d is the the common difference.

From the given first five terms of the sequence we can see that the first term is 23 so a_1 = 23.

The common difference, d, can be calculated by a_n - a_{n -1} so we'll find the common difference of the given sequence by letting n = 2

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Now let's plug everything we know.

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7 0
2 years ago
How many solutions are there to the equation below?
sertanlavr [38]

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Step-by-step explanation:

x²=9

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Hope this helps!! :)

3 0
3 years ago
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