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RUDIKE [14]
3 years ago
14

HELP ME I NEED SOMEHELP PLZ PLZ PLZ

Mathematics
1 answer:
otez555 [7]3 years ago
8 0

Step-by-step explanation:

2/7

2×2 = 4

___

7×2 = 14

2×3 = 6

___

7×3 = 21

2×4 = 8

___

7×4 = 12

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Tres veces un número x, restado de 18 es menor que -90
andrey2020 [161]
The answer is linked below
8 0
2 years ago
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
*brainliest for best answer thank you* Solve for b.
vekshin1

Hello from MrBillDoesMath!

Answer:

The fourth choice,  b = +\- sqrt( sg + a^2)

Discussion:

s = (b^2 - a^2)/g     =>              multiply both sides by "g"

sg = b^2 - a^2        =>               add a^2 to both sides

sg + a^2 = b^2       =>                take the square root of each side

b = +\- sqrt( sg + a^2)


which is the fourth choice.


Thank you,

MrB

7 0
3 years ago
Use any method to add or subtract (1 point) <br> 5/7 - (3/14 + 3/14)
Ray Of Light [21]

Answer:

  • 5/7 - (3/14 + 3/14) = 2/7

See the steps of solution:

  • 5/7 - (3/14 + 3/14) =           Solve parenthesis first
  • 5/7 - (3 + 3)/14 =                Add fractions with same denominator
  • 5/7 - 6/14 =                        Simplify
  • 5/7 - 3/7 =                         Subtract fractions with same denominator
  • (5 - 3)/7 =                           Simplify
  • 2/7                                     Answer
6 0
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If the volume of a small container is 14,520 cubic millimeters, what is the volume of the container in cubic centimeters
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Answer:

SDADWDADSDWADSD

Step-by-step explanation:

4 0
2 years ago
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