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Tatiana [17]
3 years ago
6

  4⁄15 of the 315 members of a book club are male. How many female members are there in the club? 

Mathematics
2 answers:
disa [49]3 years ago
4 0
B. 231

315 divided by 15 = 21
21 * 4 = 84
315 - 84 = 231
Taya2010 [7]3 years ago
4 0
D. 131 female members are in the club

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In a recent survey, 60% of the community favored building a health center in their neighborhood. If 14 citizens are chosen, find
andreev551 [17]

Answer:

Probability that exactly 5 of them favor the building of the health center is 0.0408.

Step-by-step explanation:

We are given that in a recent survey, 60% of the community favored building a health center in their neighborhood.

Also, 14 citizens are chosen.

The above situation can be represented through Binomial distribution;

P(X=r) = \binom{n}{r}p^{r} (1-p)^{n-r} ; x = 0,1,2,3,.....

where, n = number of trials (samples) taken = 14 citizens

         r = number of success = exactly 5

        p = probability of success which in our question is % of the community

              favored building a health center in their neighborhood, i.e; 60%

<em>LET X = Number of citizens who favored building of the health center.</em>

So, it means X ~ Binom(n=14, p=0.60)

Now, Probability that exactly 5 of them favor the building of the health center is given by = P(X = 5)

        P(X = 5) = \binom{14}{5} \times 0.60^{5} \times (1-0.60)^{14-5}

                      = 2002 \times 0.60^{5} \times 0.40^{9}

                      = 0.0408

Therefore, Probability that exactly 5 of them favor the building of the health center is 0.0408.

4 0
3 years ago
What is the Slope= 7, (3,9)
lisov135 [29]
Where is the question? I have no idea what I need to do to help u?
5 0
3 years ago
Help asap!! Means a lot. 46 pts (:
adell [148]
Slope = (-7+4) / (7-1) = -3/6 = -1/2

using point (1,-4)
equation y + 4 = -1/2(x - 1)

answer is C. 
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8 0
3 years ago
Read 2 more answers
2 + 3 × 16 − 2 × 21 − 3 = <br> 5<br> 14<br> 35<br> 40
Ganezh [65]

Answer: 5

Step-by-step explanation:

Since, According to the BODMAS, when we solve an expression,

We follow the following sequence,

1. Bracket/ parenthesis

2. Of

3. Division

4.Multiplication

5. Addition

6. Subtraction

Here, the given expression is,

2 + 3\times 16 - 2\times 21 - 3

Thus, solving the given expression by following the BODMAS,

We get,

Step 1. 2 + 48 - 42 - 3

Step 2. 50 - 42 - 3

Step 3. 8-3

Step 4. 5


7 0
3 years ago
Describe the graph of the function. y = |x + 2|
charle [14.2K]

A chart would include

x, y

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0, 2

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The graph would look like this (Image attached)

5 0
3 years ago
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