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3 years ago

A king Palm can grow about 21 feet a year . Estimate the height of the kind palm , yard ,after 15 years

Mathematics

1 answer:

marshall27 [118]3 years ago

3 0

Answer:

10.5 yards after 15 years

Step-by-step explanation:

2.1 feet times 15 years, which equals to 31.5 feet, convert 31.5 feet into yards, so divide it by 0.3, and that equals to approximately 10.5 yards

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On a multiple-choice test. Abby randomly guesses on all seven questions. Each question

Murrr4er [49]

Answer:

0.173 probability that she gets exactly three questions correct.

Step-by-step explanation:

For each question, there are only two possible outcomes. Either she guesses the correct answer, or she does not. The probability of guessing the correct answer for a question is independent of other questions. So we use the binomial probability distribution 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.

Seven questions:

This means that $n = 7$

Each question has four choices.

Abby guesses, which means that $p = \frac{1}[4} = 0.25$

Find the probability to the nearest thousandth, that Abby gets exactly three questions correct.

This is P(X = 3).

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

$P(X = 3) = C_{7,3}.(0.25)^{3}.(0.75)^{4} = 0.173$

8 0

2 years ago

two random samples of 25 people were asking how many 12 oz cans of soda they consume each week first sample contains both males

dezoksy [38]

Answer:

One inference that can be made is that the age group of 12-19 consume more sodas than the age group of 20-39.

Step-by-step explanation:

7 0

2 years ago

A town uses positive numbers to track increases in population and negative numbers to track decreases in population. The populat

Alex73 [517]

Well heres what to do

300 residents 5yrs

divde 300 by 5= you get 60 a yr

5 0

2 years ago

Read 2 more answers

Can you help me get the answer for this. Please respond as soon as possible.

S_A_V [24]

Answer:

yes what is it

Step-by-step explanation:

6 0

2 years ago

Many 4 digit numbers can be formed using only the numbers 3 2 7 6 0 4 9 if

ryzh [129]

Hi!

The combination of 4 digit numbers using those numbers are: 3, 276; 3, 762; 3, 267; 3, 726; 3, 672 etc. This is pretty easy, now you try.

Hope I helped! Have a nice day!

6 0

2 years ago