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mars1129 [50]
3 years ago
5

Ed genuity

Mathematics
2 answers:
Virty [35]3 years ago
7 0

Hope This Helps! :)

Explanation:

True [87]3 years ago
4 0

Answer:

D.    AC = 5 Star Root 3 End Root and BC = 5

Step-by-step explanation:

I just took this on ed genuity.

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A group consists of seven men and five women. Three people are selected to attend a conference.
Dima020 [189]

Answer:

a) 220

b) 10

c) 4.55% probability that the selected group will consist of all women.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the people are selected is not important. So we use the combinations formula to solve this question.

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)!}

a. In how many ways can three people be selected from this group of twelve?

C_{12,3} = \frac{12!}{3!(12-3)!} = 220

b. In how many ways can three women be selected from the five women?

Three women, from a set of 5. So

C_{5,3} = \frac{5!}{3!(5-3)!} = 10

c. Find the probability that the selected group will consist of all women.

Desired outcomes:

3 women from a set of 4. So

D = C_{5,3} = \frac{5!}{3!(5-3)!} = 10

Total outcomes:

3 people, from a set of 12. So

T = C_{12,3} = \frac{12!}{3!(12-3)!} = 220

Probability:

p = \frac{D}{T} = \frac{10}{220} = 0.0455

4.55% probability that the selected group will consist of all women.

3 0
3 years ago
Anyone know how to factor 56x^3 -49x^2 + 40x -35?
Zielflug [23.3K]

Answer:

I'm answering your question no I don't

3 0
3 years ago
There are 800 students at Prestfield School. 45% of these 800 students are girls
balandron [24]
10%= 80
5%=40
80 x 4= 320
320+40=360

the answer is 360
8 0
3 years ago
Write an equation with the two points: (5,-2) and (3,4)
eimsori [14]

Answer:

y=-3x-17

Step-by-step explanation:

To find out the m(slope) of the equation use the formula:

\frac{y_2-y_1}{x_2-x_1}.

Substitute the values:

\frac{4--2}{3-5}

Combine the values:

\frac{6}{-2}

Find the value of the fraction:

-3

M is -3.

The equation so far is y=-3x+b

To find the y intercept, substitute one pair of coordinates into the equation and solve for b:

y=-3x+b\\-2=3*5+b\\-2=15+b\\-17=b.

We see that b =-17 so the full equation would be:

y=-3x-17.

3 0
3 years ago
Show solution of the ratio of 14 days to 3 weeks in simplest form?
erica [24]
14:3 can be written as 14/3...and this does not simplify

4 0
3 years ago
Read 2 more answers
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