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Elan Coil [88]
2 years ago
10

Help with this pls and thank u

Mathematics
1 answer:
stira [4]2 years ago
8 0

Answer:

where is the question plsss tell me what you ask

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The population of a particular country was 26 million in 1981; in 1990, it was 31 million. the exponential growth function descr
yuradex [85]
Just use syblol it is verygood for varible form 
5 0
2 years ago
Marquis has 7 cups of yogurt. He gives his sister 3 3
Varvara68 [4.7K]

Answer:

He has 3,65 cups of yogurt left.

Step-by-step explanation:

7 - 3,35 = 3,65

6 0
2 years ago
According to a survey, 78% of residents in Summerville own a home. If 30 residents
rosijanka [135]

Answer:

0.1732 = 17.32% probability exactly 24 residents own a home.

Step-by-step explanation:

For each resident, there are only two possible outcomes. Either they own a home, or they do not. The probability of a resident owning a home is independent of any other resident. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which 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)!}

And p is the probability of X happening.

78% of residents in Summerville own a home.

This means that p = 0.78

30 residents are randomly selected:

This means that n = 30

Find the probability exactly 24 residents own a home.

This is P(X = 24).

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 24) = C_{30,24}.(0.78)^{24}.(0.22)^{6} = 0.1732

0.1732 = 17.32% probability exactly 24 residents own a home.

3 0
2 years ago
Please help asap!!!!!!!!!!
elena-s [515]

Answer:

b

Step-by-step explanation:

8 0
2 years ago
Which ratio is equivalent to 9: 180? А 5 200 B. 12 : 240 C 10 400 D 8 560​
pshichka [43]

Answer:

B. 12:240

Step-by-step explanation:

- 9:180

⇒ 1:20

Optiona (A) 5 : 200 it is not  multiple of 1:20, Eliminate.

Option (B) 12:240, it is multiple of 1:20 ( x 12) , quality

Option (C) 10:400 , Eliminate

Option (D) 8:560 , Eliminate

Hence, 12:240 is equivalent to 9:180.

6 0
2 years ago
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