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Evgesh-ka [11]
3 years ago
5

You randomly choose a tile. Without replacing the first tile, you choose a second tile. Find the probability of the compound eve

nt. Write your answer as a fraction or percent rounded to the nearest tenth.
The probability of choosing a number less than 7 and then a multiple of 4 is _____

Mathematics
2 answers:
ElenaW [278]3 years ago
7 0
1/9
The only multiple of 4 is 4 & it is less than 7.
Sedbober [7]3 years ago
6 0
I would say there is a 1 in 9 chance, or one ninth (I don’t know how to do the fraction symbol) of your tries would be on the number 2. This is because there are 9 options to choose from but we are strictly speaking of the probability of you choosing one.

For the second question I would say 1 in 9, or 1 ninths of your tries will be on a number less that seven that is also a multiple of 4. The only multiple of four that is less than 7 is four.
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"if n balls are distributed randomly into k urns, what is the probability that the last urn contains j balls?"
seraphim [82]

The answer relies on whether the balls are different or not. If they are not, which is almost certainly what is intended.


If they are, the perceptive is a bit different. Your expression gives the likelihood that a particular set of j balls goes into the last urn and the other n−j balls into the other urns. But there are (nj) different possible sets of j balls, and each of them the same probability of being the last insides of the last urn, so the total probability of completing up with exactly j balls in the last urn is if the balls are different.


See attached file for the answer.

3 0
3 years ago
1 +1 2+2 3+3 4+4 5+5 6+6
julsineya [31]
46 i think. sorry if i’m wrong
5 0
3 years ago
What do you call the absolute values of 6 and -6
coldgirl [10]

I believe they are called opposites.

3 0
3 years ago
Solve using a proportion.
Advocard [28]

Answer:

t = 24 yards

Step-by-step explanation:

Since the trapezoids are similar then the ratios of corresponding sides are equal, that is

\frac{t}{c} = \frac{u}{d}

Substitute in given values

\frac{t}{0.4} = \frac{15}{0.25} ( cross- multiply )

0.25t = 6 ( divide both sides by 0.25 )

t = 24

5 0
3 years ago
Find cot theta if 180° < theta < 270° and cos theta = - sqrt 3/2
avanturin [10]

Answer:

cot theta = -√3

Step-by-step explanation:

we are given that  cos theta = - √3/2 within the range 180° < theta < 270° and

since cos theta = adj/hyp

adj = - √3

hyp = 2

Get the opposite using the pythagoras theorem

hyp^2 = opp^2 + adj^2

2² = opp² + (-√3)²

4 = opp² + 3

opp² = 4-3

opp² = 1

opp = 1

tan theta = opp/adj

tan theta = - 1/√3

Recall that cot theta = 1/tan theta

cot theta = 1/(-1/√3)

cot theta = -√3

8 0
3 years ago
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