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Dmitrij [34]
3 years ago
14

What is the difference between union set and universal set​

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
5 0

Answer:

Universal set is a set which contains all values

Union of Sets : The joining of two or more sets  .

Step-by-step explanation:

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4. $23 shirt. 6.5% sales tax<br> What is your total bill?
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Answer:

$24.50

Step-by-step explanation:

23x0.065 =1.495

23 + 1.50 = 24.50

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5. Of the 3 times Buddy kisses Jovie while they
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Answer:

2/3 times he kissed her 1/3 times he missed

Step-by-step explanation:

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Money Neil has a total of twelve $5 and $10 bills in his wallet. He has 5 times as many $10 bills as $5 dollar bills. How many o
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7 0
3 years ago
The mass of a proton is approximately 1.67 x 10−24, and the mass of an electron is approximately 9.11 x 10−28. Find the approxim
nataly862011 [7]

Answer:

≈ 1833

Step-by-step explanation:

To find ratio of proton mass to electron mass, we have to divide.

The numbers are given in <em>scientific notation</em>.

Let a number be  a*10^b and another be  c*10^d, when we divide, we will follow the rule shown below:

\frac{a*10^b}{c*10^d}=(\frac{a}{c}*10^{b-d})

Now, we use the information given to find the ratio:

\frac{1.67*10^{-24}}{9.11*10^{-28}}\\=(\frac{1.67}{9.11}*10^{-24--28})\\=0.1833*10^4

This means we can find the number by taking 4 decimal places to the right, so that would becomes:

0.1833*10^4=1833

The approximate ratio is 1833 [mass of proton is around 1833 times heavier than mass of electron]

7 0
3 years ago
Read 2 more answers
Whitch is the value of this expression when a=5 and k=-2
lana66690 [7]

Answer:

25/9

Step-by-step explanation:

25/9

7 0
3 years ago
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