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Airida [17]
3 years ago
7

I need major help on these set theory questions!!!

Mathematics
1 answer:
Savatey [412]3 years ago
4 0

Answer:

4. option D

5. option C

6. option A

7. option A

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**HELP!**
mr_godi [17]
If two figures or lengths are similar, then the ratios of the corresponding lengths are equal.
Thus, 8/32 =5/x
          8x = 160
            x = 20 feet
Therefore, the length of the flag pole was 20 feet long
3 0
3 years ago
A sample size of n = 64 is drawn from a population whose standard deviation is o = 5.6.
AlekseyPX

Answer:

The margin of error for a 99% confidence interval for the population mean is 1.8025.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.99}{2} = 0.005

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.005 = 0.995, so z = 2.575

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

In this problem:

\sigma = 5.6

So

M = 2.575*\frac{5.6}{\sqrt{64}} = 1.8025

The margin of error for a 99% confidence interval for the population mean is 1.8025.

5 0
3 years ago
What does the equation "m=7.50" mean in this situation?
Naddik [55]

Answer:

1. It means that m equals 7.5

2. It means 4.5 plus s equals m

3. It means n times s equals 6

4. It means m plus n times s equals t

Step-by-step explanation:

Source: Just trust me bro

3 0
3 years ago
Which set of measurements could not represent the side lengths of a right triangle?
kondaur [170]
The answer is C
Step by step explanation
16 ft,30 ft 34ft
5 0
3 years ago
on a popular fictional game show, contestants are given the opportunity to win money by reaching into a bag after being blindfol
labwork [276]

Construct a probability mass function (pmf) for x, the dollar amount won by a contestant in this game is 1/18.

What is a probability math example?

  • Probability is the measurement of how likely something is to happen.
  • As an example, since there is only one way to get a head and a total of two possible results, the likelihood of flipping a coin and getting heads is one in two. a tail or a head.
  • We write P(heads) = 12 here. The four most popular approaches to probability are axiomatic, classical, empirical, and subjective.

from above total number of chips =4+6+5+2+1 =18

hence Probabilty of win 0 P(0)=4/18

P(1) =6/18

P(5) =5/18

P(10) =2/18

P(100)=1/18

x     P(x)     xP(x)

0    0.22     0.00

1     0.33      0.33

5     0.28       1.39

10      0.11       1.11

100     0.06      5.56

                       8.39

therefore expeted value =8.39

Learn more about probability

brainly.com/question/11234923

#SPJ9

8 0
1 year ago
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