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djverab [1.8K]
2 years ago
11

Square root -40 divided by square root -4 What is the answer?

Mathematics
1 answer:
saw5 [17]2 years ago
8 0

Answer:

  √10

Step-by-step explanation:

There are a couple of ways you can go at this.

  \dfrac{\sqrt{-40}}{\sqrt{-4}}=\sqrt{\dfrac{-40}{-4}}=\boxed{\sqrt{10}}

or ...

  \dfrac{\sqrt{-40}}{\sqrt{-4}}=\dfrac{2\sqrt{10}\,i}{2\,i}=\boxed{\sqrt{10}}

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Their answer is correct so you need explanation?
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Answer

y = 6x

Explanation

To write a recursive or explict rue for this sequence, we need to firstly examine the given sequence.

If we let money spent = y and number of weeks = x

when x = 1, y = 6

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when x = 4, y = 24

We can easily see that as x increases by units of 1, the y increases by corresponding units of 6.

A rule that will work for this is that

y = 6x

so that, when x = 1, y = 6(1) = 6 (as it is on that graph)

when x = 2, y = 6(2) = 12 (as it is on that graph again)

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Answer:

Step-by-step explanation:

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