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2 years ago

Help please

1 answer:

6 0

Just so u know the answers are in parentheses
1. which is the only one that can be reached by multiplying one by 3 and getting the other. (C)
2.first you would multiply each by 7 to get that out of the way. then you will want to multiply 25 by .6 and add that to the product of 7 and 25 to get your distance. (C)
3. on this one you are half right, but instead of d. if you do your math you will see that 13/25 is .53 and 13/20 is .65 just like you need so it will be (B,C)
4. well first you want to add all of the numbers together and after u do that u will get 140. then after that you will put it into a fraction and get 35/140 which you can divide both by 35 to get 1/4 which gives you your answer (A)
5. no sir that is the tip you are going to pay the way to find what the final bill is would be that first you will multiply 34.5 by .15 to get how much you are adding to the original bill. so it will look like 34.5*.15=5.175 but since you can only have 2 decimal points in money you will round that up to 5.18. now you will add that to 34.5 to get your answer. it will look like this, 34.5+5.18=39.68. So your answer would be C.

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Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to fi

Keith_Richards [23]

Answer:

P(X = 12) = 0.0064.

Step-by-step explanation:

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.

In this problem we have that:

$n = 30, p = 0.2$

We want P(X = 12). So

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

$P(X = 12) = C_{30,12}.(0.2)^{12}.(0.8)^{18} = 0.0064$

P(X = 12) = 0.0064.

6 0

3 years ago

An article reports "sales have grown by 30% this year, to $200 million." What were sales before the growth? An article reports "

zimovet [89]

The amount of sales before growth according to the article is $153.85 million

<h3>How to find sales before growth?</h3>

let

Sales before growth = x
Percentage growth = 30%
New sales = $200 million

200 = x + (30% × x)

200 = x + (0.3 × x)

200 = x + 0.3x

200 = 1.3x

x = 200/1.3

x = 153.846153846153

Approximately,

x = $153.85 million

Learn more about percentage:

brainly.com/question/843074

#SPJ1

8 0

1 year ago

The diameter of your bicycle wheel is 34inches

Bingel [31]

That does not make sense sorry :(

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3 years ago

Which statistic is a measure of how data are dispersed in a population and can be used to give context to larger data sets

OLEGan [10]

Answer:

standard deviation

Step-by-step explanation:

The standard deviation is defined as the measure of how spread out the numbers are in a given population. In other words, statistics refers to the amount of the dispersion or variation of a set of given values.

It is denoted by the Greek letter sigma, σ.

Thus the standard deviation is the measure of how dispersed the data are in the population which can be used to provide context to a larger data sets.

7 0

3 years ago

What is this area? please help

Gnoma [55]

Answer:

Step-by-step explanation:

multiply the 20m x 6m

20x6=120. Is base x high

then

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2 years ago