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4 years ago

What is the missing circle sequence number 10,40,?,80,40,20

Mathematics

1 answer:

soldier1979 [14.2K]4 years ago

4 0

80 because it should be the same as the other one

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katrin2010 [14]

For this case we must find an expression equivalent to:

$\frac {\sqrt [7] {x ^ 2}} {\sqrt [5] {y ^ 3}}$

By definition of properties of powers and roots we have:

$\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}$

So, rewriting the expression we have:

$\frac {x ^ {\frac {2} {7}}} {y ^ {\frac {3} {5}}} =$

By definition of power properties we have:

$a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}$

So:

$x ^ {\frac {2} {7}} * y ^ {- \frac {3} {5}}$

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krok68 [10]

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The third graph

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4 years ago

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Monica [59]

Answer:

$\text{n}(A \bigcup B)$ = 6.

Step-by-step explanation:

We are given that n(A) = 4, n(B) = 5, and $\text{n}(A \bigcap B)$ = 3.

And we have to find the value of $\text{n}(A \bigcup B)$ .

<u>As we know that the union formula is given by;</u>

$\text{n}(A \bigcup B) = \text{n}(A) + \text{n}(B) - \text{n}(A \bigcap B)$

Now, substituting the values given in the question in the above formula, we get;

$\text{n}(A \bigcup B) = 4+5-3$

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Hence, the value of $\text{n}(A \bigcup B)$ = 6.

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3 years ago

I need help with questions #3-4. I’m not sure if my steps are correct

zheka24 [161]

I'm not sure what you're supposed to round to, but since this is money, I would suggest including the dollar sign in front of the answers and including round to the hundredth's decimal place. Otherwise, you're answers are correct.

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