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Fynjy0 [20]
3 years ago
13

ASAP pls answer will mark brainiest

Mathematics
1 answer:
IgorLugansk [536]3 years ago
8 0

Answer:

15 liters

Step-by-step explanation:

60(mins =1hr)/ 1/2= 10

10 * 3 1/2=15

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Which of the following sequences of numbers are arithmetic sequences?
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-------

The difference between consecutive terms (numbers that come after each other) in arithmetic sequences is the same. That means you add the same number every time to get the next number. To figure out which choices are arithmetic sequences, just see if the differences are the same.

Choice A) 1, -2, 3, -4, 5, ...
-2 - 1 = -3
3 - (-2) = 5
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Choice B) 12,345, 12,346, 12,347, 12,348, 12,349, ... 
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The difference is constant, so it is an arithmetic sequence.

Choice C) <span>154, 171, 188, 205, 222, ... 
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188 - 171 = 17
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Choice D) 
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Choice E) 
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5 0
3 years ago
What are the solutions of the system?
svetlana [45]

Answer:

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Here the given equations are y = x²+2x+3 -----(1)

and y = 4x-2 -------(2)

Now we substitute the value of y from equation 2 into 1.

x²+2x+3 = 4x-2

x²+2x+3-2x = 4x-2-2x

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x²+3-2x = 2x-2x-2

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=\frac{+2\pm \sqrt{4-4\times 1\times 5}}{2}

=\frac{2\pm \sqrt{4-20}}{2}

Since in this solution √(-20) is not defined. Therefore there is no solution.

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