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aliina [53]
3 years ago
14

The sum of two numbers is 8, and their product is 80.

Mathematics
1 answer:
Anettt [7]3 years ago
6 0

From their sum, the numbers are ' x ' and ' 8 - x ' .

From their product,  x(8 - x) = 80 .

When you massage and manipulate this equation into the standard
quadratic form, you have

         x² - 8x + 80 = 0  .

Applying the quadratic formula to tease out the solutions of this equation,
we find that they are

          <em> x = 4 + 64 i</em>
and
          <em> x = 4 - 64 i</em>


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zubka84 [21]

Answer:

B would be a *dependent* event, and A would be an *independent* event.

Step-by-step explanation:

Independent events are separate events where the outcome in either event does not affect the other's probability. The opposite, where the outcome of the one event affects the other's probably, is dependent.

For Option A, taking a tile out and then replacing it does not affect the probability that the same tile will be picked for the 2nd picking.

For Option B, taking a tile out of the bag and then picking another tile are 2 separate events and both have different probabilities for picking identical tiles.

Therefore, Option B is dependent and Option A is independent.

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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8 0
2 years ago
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Answer:

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