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Olenka [21]
3 years ago
11

Simplify 3/2x+5+5/x-5

Mathematics
2 answers:
Novay_Z [31]3 years ago
8 0
1. Simplify 3/2x to 3x/2
3x/2 + 5 + 5/x - 5

2. Collect like terms
3x/2 + (5 - 5) + 5/x

3. Simplify
3x/2 + 5/x

4. Cross multiply
3xx + 5 * 2/2x

5. Use "product rule"
3x^2 + 5 * 2/2x

6. Simplify 5 * 2 to 10
3x^2 + 10/2x

yulyashka [42]3 years ago
5 0
Assuming that you meant "(<span>3/2)x+5+5/x-5," group together the x terms and then group together the constant terms:

(3/2)x +5 - 5 + 5/x

This becomes (3/2)x + 5/x.  You can leave your answer in this form, or you could sum up the 2 terms into one using the LCD 2x.

Then your </span>(3/2)x + 5/x  becomes    (2x)(3/2)x + (2x)(5/x)
                                                       --------------------------------
                                                                     2x

or 3x^2 + 10
    --------------
         2x
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Thirty students in the fifth grade class listed their hair and eye colors in the table below: Brown hair Blonde hair Total Green
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Answer:

No, the events "brown hair" and "brown eyes" are not  independent.

Step-by-step explanation:

The table that represents the  hair and eye colors of thirty students of the fifth grade are given in table as:

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Total                     19                        11                             30

No, the events  "brown hair" and "brown eyes" are not independent.

Since, two events A and B are said to be independent if:

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Here we have:

A= students having brown hair.

B= students having brown eyes.

A∩B= students having both brown hair and brown eyes.

Now,

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P(B)=15/30  ( ratio of addition of second row to the total entries)

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P(A∩B)=10/30

Now as:

P(A∩B) ≠ P(A)×P(B)

Hence, the two events are not independent.

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slamgirl [31]
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