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Valentin [98]
3 years ago
7

Which quadrilateral will always have 4-fold reflectional symmetry?

Mathematics
2 answers:
saul85 [17]3 years ago
5 0

Answer:

trapezoid

Step-by-step explanation:

andrew11 [14]3 years ago
3 0

Answer:

trapezoid

Step-by-step explanation:

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A christmas gift to you to earn some points
Katyanochek1 [597]

Answer:

2229 thanks, merry early Christmas

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3 years ago
Unknown to a medical researcher, 6 out of 25 patients have a heart problem that will result in death if they receive the test dr
Fiesta28 [93]

Using the hypergeometric distribution, it is found that there is a 0.0002 = 0.02% probability that exactly 6 patients will die.

<h3>What is the hypergeometric distribution formula?</h3>

The formula is:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • N is the size of the population.
  • n is the size of the sample.
  • k is the total number of desired outcomes.

The values of the parameters for this problem are:

N = 25, k = 6, n = 8.

The probability that exactly 6 patients will die is P(X = 6), hence:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}

P(X = 6) = h(6,25,8,6) = \frac{C_{6,6}C_{19,2}}{C_{25,8}} = 0.0002

0.0002 = 0.02% probability that exactly 6 patients will die.

More can be learned about the hypergeometric distribution at brainly.com/question/24826394

#SPJ1

8 0
2 years ago
Given roots of quadratic equation are x=3 and x=4 write the quadratic equation.
Andrews [41]
Asome that’s cool do well
6 0
3 years ago
Help<br><br><br><br><br><br> Will give <br><br><br><br><br><br> Brainlist<br><br><br><br> Answer
Elza [17]

Answer:

the answer for this one is 39.2f. me being a Canadian and knowing that 0c is 32 Celsius it had to be larger and putting 4 Celsius thru a converter gives you 39.2

Step-by-step explanation:

4 0
3 years ago
A baker uses 3 muffin tins for 36 muffins. How many muffin tins does she use for 60 muffins?
ser-zykov [4K]
If she used 3 for 36 we can assume the muffin tins hold 12 muffins, so we can do 60 divided by 12 to get 5!

She uses 5 muffin tins!
6 0
3 years ago
Read 2 more answers
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