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galben [10]
3 years ago
10

Write a matrix to represent the system 2a-3b=6 a+b=2

Mathematics
2 answers:
Lera25 [3.4K]3 years ago
8 0
The matrix should be this:

<span>\left[\begin{array}{ccc}2&-3\\1&1\end{array}\right]


</span>

Feliz [49]3 years ago
5 0

Answer:

2|  -3|   6

1|   1|     2

Step-by-step explanation:

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A deer population is declining by 2.2% per year. The population can be modelled using the formula p = 240(0.978)n , where P is t
ale4655 [162]

Answer:

The current deer population is 240.

Step-by-step explanation:

The expression given models a exponential decay follows:

p(n) = 240*(0.978)^n

For every year that passes since the beginning of the count the population is 0.978 of the year prior. Assuming that the count starts at this year, then "n" is equal to 0, applying this value of n to the formula gives us:

p(0) = 240*(0.978)^0\\p(0) = 240*1 = 240

The current deer population is 240.

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The answer would be 80 students
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Step-by-step explanation:

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3 0
3 years ago
Which ordered pair is a solution of the equation? y=8x+3y=8x+3
Mrac [35]

Multiply the first equation by 4 (so that both equations will have 8x terms) and then subtract:  

8x-20y = -24

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Now divide both sides by -23:  

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Find x by plugging y=4 into either equation:  

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So the answer is ordered pair is (7,4)

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3 years ago
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