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Rudik [331]
3 years ago
14

Find the number of different subsets of the set mom dad son daughter

Mathematics
1 answer:
Ivahew [28]3 years ago
5 0
Mom dad
mom son
mom daughter
mom dad son
mom dad daughter
mom son daughter

dad son
dad daughter
dad son daughter

son daughter
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What is 20/8 in the lowest mixed form?
Kisachek [45]

20/8 = 10/4 = 5/2

So, it's mixed form would be 2 1/2

8 0
3 years ago
Tom is a cashier at HEB, he makes $13.25 per hour. If he works 22 hours this week what will be his gross income?
mamaluj [8]

Answer:

  $291.50

Step-by-step explanation:

For 22 hours, he earns 22 times his hourly pay.

  22×$13.25 = $291.50

6 0
3 years ago
The table shows the snack preferences of 50 shoppers at the mall. What is the probability that one shopper, selected at random f
Monica [59]
The answer is A !!!!!!!!!!!! !!!!!!!!!!!! !!!!!!!!!!!! !!!!!!!!!!!!<span> !!!!!!!!!!!!</span>

4 0
3 years ago
Read 2 more answers
Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 100 disks are sum
s344n2d4d5 [400]

The contingency tables serve to record the frequencies with which an object appears according to the measured variables, in this case two variables, each with two scales, the scratch resistance and the shock resistance, both measured as high and low.

The information is organized in such a way that the value of each box represents the total number of objects that meet the characteristics measured for each variable, for example in this case we have 70 discs with <em>high shock resistance and high scratch resistance</em>, 9 with <em>high scratch resistance and low shock resistance</em>, 16 with <em>high shock resistance and low scratch resistance</em> and finally 5 discs with <em>low scratch and shock resistance</em>.

We complete the table like this to obtain other total values:

\qquad\qquad\qquad\qquad\qquad\text{Shock resistance}\\\text{Scratch resistence}\left[\begin{array}{cccc}&\text{high}&\text{low}&\text{total}\\\text{high}&70&9&79\\\text{low}&16&5&21\\\text{total}&86&14&100\end{array}\right]

With this information, and taking into account that the values ​​presented are frequencies, to obtain the probability, each one must be divided into the total number of objects and multiply by 100, for this case as 100 objects, the frequency is the same percentage or probability .

Answer

a) The probability that, when selecting a random disk, its scratch resistance is high and its shock resistance is high is 70%, since this is the value that corresponds to the intersection of both variables in the table.

b) the probability that, when selecting a random disk, its resistance to scratches is high or that its resistance to impacts is high is 95% because the probability that its resistance to scratches is high is 79 % and the probability that its impact resistance is high is 86%, as one or the other requests, this is the sum of both minus the intersection, that is 79% + 86% -70% = 95%

c) the two events described are not mutually exclusive, that is, they cannot pass through, since the table informs us that of the analyzed discs 70, these two characteristics possessed, high shock resistance and high scratch resistance

8 0
3 years ago
10................/......
jolli1 [7]

Answer:

<h2><u>-1 + √3 or -(1 - 2√3)</u></h2>

Step-by-step explanation:

(1 + √3) (2 - √3) = 2 - √3 + 2√3 - 3 = 2 - 3 - √3 + 2√3 = <u>-1 + √3 or -(1 - 2√3)</u>

6 0
3 years ago
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