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Usimov [2.4K]
3 years ago
5

Which transformation gives the same result as a rotation of 180° around the origin followed by a reflection over the y-axis? A.

a rotation of 270 degrees around the origin B.A reflection over the x axis C.a reflection over the y axis D.a potion of 90 degrees around the origin
Mathematics
1 answer:
xz_007 [3.2K]3 years ago
3 0

Answer:

The answer should be C

Step-by-step explanation:

Because if you do a reflection over the y-axis you would get the same thing

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A real estate agent is showing homes to a prospective buyer. There are ten homes in the desired price range listed in the area.
Citrus2011 [14]

Answer:

0.48% probability that all four are new

Step-by-step explanation:

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Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

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

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

In this question:

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In total, there are 4 new, so k = 4.

Sample of four homes, so n = 4.

Then

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6 0
3 years ago
What is 1.25 rounded to a whole number??
mel-nik [20]
1.25 rounded to a whole number would be 1 because the 2 tenths doesn't do that much to round the 1 up to a 2.
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Hope this helped:):)
5 0
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