Ask question

Ask question

All categories

3 years ago

12

The rules state each child must kick the same number of times and alternate girl-boy or boy-girl. How many ways can a line-up be

made for one round of kicking?

1 answer:

Delicious77 [7]3 years ago

5 0

Take turn by kicking the ball

You might be interested in

you need to read the directions before you answer!!!!!! its scatter plots and I need it done by 4:00 my time!!!!!!!

Ksju [112]

Answer:

It's ratios. Comparisions I think

Step-by-step explanation:

The speed of the runner:Number of races she won- Positive

The size of the vehichle:Miles per Gallon of gas in the tank so how far it can travel- Negative

The number of the Telephones you own:Calls you recieve-Positive

Do you have another thing to show? Or is it just that?

7 0

3 years ago

Suppose that the cost of a rental car is $65 for a week plus 0.15 per mile driven.

IceJOKER [234]

You have the following equation for the cost of renting a car for x number of miles driven:

y = 0.15x + 65

If you travel 70 miles, then, x = 70 and you obtain for the cost y:

y = 0.15(70) + 65

y = 10.5 + 65

y = 75.5

Hence, the cost of renting a car to drive 70 miles is $75.5

3 0

1 year ago

Students in two classes took a mathematics achievement test. The box plots display the data.

Basile [38]

Answer:

Option 1 is correct

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

If p=2 and q= 5, is the value of p/q equivalent to 2/5

PIT_PIT [208]

Answer:

Yes it is

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Many utility companies promote energy conservation by offering discount rates to consumers who keep their energy usage below cer

aleksley [76]

Answer:

a. 0.1681 = 16.81% probability that all five qualify for the favorable rate.

b. 0.5283 = 52.83% probability that at least four qualify for the favorable rates

Step-by-step explanation:

For each Puerto Rico resident, there are only two possible outcomes. Either they qualify for discounted rates, or they do not. The probability of a person in the sample qualifying for discounted rates is independent of any other person in the sample. 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.

70% of the island residents of Puerto Rico have reduced their electricity usage sufficiently to qualify for discounted rates.

This means that $p = 0.7$

Five residential subscribers are randomly selected from San Juan, Puerto Rico

This means that $n = 5$

a. All five qualify for the favorable rate

This is P(X = 5). So

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

$P(X = 5) = C_{5,5}.(0.7)^{5}.(0.3)^{0} = 0.1681$

0.1681 = 16.81% probability that all five qualify for the favorable rate.

b. At least four qualify for the favorable rates

This is

$P(X \geq 4) = P(X = 4) + P(X = 5)$

So

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

$P(X = 4) = C_{5,4}.(0.7)^{4}.(0.3)^{1} = 0.3602$

$P(X = 5) = C_{5,5}.(0.7)^{5}.(0.3)^{0} = 0.1681$

$P(X \geq 4) = P(X = 4) + P(X = 5) = 0.3602 + 0.1681 = 0.5283$

0.5283 = 52.83% probability that at least four qualify for the favorable rates

5 0

3 years ago