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madreJ [45]
2 years ago
6

List all partitions of the set. (a) (1,2) (b) [a, b,c)

Mathematics
1 answer:
Alchen [17]2 years ago
3 0

Answer: Hello mate!

The partition of a set is defined as a partition of the set into a nonempty subset, where the set itself is a subset of himself, then the set is a partition of himself.

a) in this we have a set of two objects; A = (1,2) the partitions of this set are: (∅), (1), (2) and (1,2). Where (∅) is the null set.

b) Now we have a set of three objects; B = (a,b,c) the partitions of this set are: (∅), (a), (b), (c), (a,b), (a,c), (b,c), (a,b,c)

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If x/5+6=-14 then x equals
yanalaym [24]

Answer:

x = - 100

Step-by-step explanation:

Given

\frac{x}{5} + 6 = - 14 ( subtract 6 from both sides )

\frac{x}{5} = - 20

Multiply both sides by 5 to clear the fraction

x = 5 × - 20 = - 100

7 0
2 years ago
Need help ASAP I need the right answers
Nana76 [90]
1 is A, 2 is B, 4 is C, 5 is B, 6 is C, cant answer 4 bc it’s cut off
3 0
2 years ago
The mayor of a town has proposed a plan for the annexation of an adjoining community. A political study took a sample of 900 vot
Stells [14]

Answer:

z=\frac{0.75 -0.72}{\sqrt{\frac{0.72(1-0.72)}{900}}}=2.00  

Now we can calculate the p value. Since is a bilateral test the p value would be:  

p_v= P(Z>2) =0.0228

Since the p value is lower than the significance level of 0.05 we have enough evidence to conclude that the true proportion of residents favored annexation is higher than 0.72 or 72%

Step-by-step explanation:

Information given

n=900 represent the random sample selected

\hat p=0.75 estimated proportion of residents favored annexation

p_o=0.72 is the value that we want to test

represent the significance level

z would represent the statistic

p_v represent the p value

Hypothesis to test

The political strategist wants to test the claim that the percentage of residents who favor annexation is above 72%.:  

Null hypothesis:p\leq 0.72  

Alternative hypothesis:p > 0.72  

The statistic for this case is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the data given we got:

z=\frac{0.75 -0.72}{\sqrt{\frac{0.72(1-0.72)}{900}}}=2.00  

Now we can calculate the p value. Since is a bilateral test the p value would be:  

p_v= P(Z>2) =0.0228

Since the p value is lower than the significance level of 0.05 we have enough evidence to conclude that the true proportion of residents favored annexation is higher than 0.72 or 72%

3 0
2 years ago
Solve the equation<br> 3x + 5 = 2x - 3<br><br> x=8<br> X = 10<br> X= -8<br> X= -2
Rom4ik [11]
X=-8 is the answer so it would be C
8 0
2 years ago
Read 2 more answers
Answer the question.
san4es73 [151]
Alright so
5^4m = 5^12
cancel the bases
4m=12
divide by 4
m=3
6 0
3 years ago
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