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blsea [12.9K]
2 years ago
10

Application

Mathematics
1 answer:
user100 [1]2 years ago
6 0

He needs to run with approximately 6429 for a distance of 9 km

<h3>How to determine the number of strides?</h3>

The given parameters are:

Length of stride = 1.4 m

Distance for marathon = 9 km

The number of strides needed is then calculated as:

Number of stride = Distance for marathon/Length of stride

Substitute the known values in the above equation

Number of stride = 9km/1.4m

Convert km to m

Number of stride = 9000m/1.4m

Evaluate the quotient

Number of stride = 6428.57143

Approximate the estimate

Number of stride = 6429

Hence, he needs to run with approximately 6429 for a distance of 9 km

Read more about quotients at:

brainly.com/question/8952483

#SPJ1

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Sahira chooses a random sample from the library and records the type of books in the chart below.
ki77a [65]

The last option c is right because each book selected represents the sample from the population of full library books.

We have given that,

Sahira chooses a random sample from the library and records the type of books in the chart below.

Type of Book      Number

Fantasy                 10

Literature              25

Children’s               4

Nonfiction             11

t, showing the distribution of the number of books in a library.

Also given that Sahira chooses a random sample from the library and records the type of books in the chart below.

Sahira's sample can be said to be representative because given that books are taken at random.  

So just because books literature more we cannot say it is not representative  II option is not right, because each book was not chosen uniquely, just random books were drawn.

<h3>What is the population?</h3>

A population is defined as a group of individuals of the same species living and interbreeding within a given area. Members of a population often rely on the same resources, are subject to similar environmental constraints, and depend on the availability of other members to persist over time.

The last option c is right because each book selected represents the sample from the population of full library books.

To learn more about the population visit:

brainly.com/question/27883697

#SPJ1

3 0
2 years ago
2x-y=-7 write in slope intercept form
Doss [256]

Answer:

y=2x+7

Step-by-step explanation:

3 0
3 years ago
HELP.......................
ira [324]
1. 1 2. 1 1/43.1 1/4
7 0
3 years ago
1. Data are from a normal distribution and the mean is 20 with a standard deviation of 2. a. What % of observations fall between
tangare [24]

Answer:

P(18

And we can find this probability with the normal standard distribution and we got:

P(-1

Step-by-step explanation:

Let X the random variable that represent the variable of a population, and for this case we know the distribution for X is given by:

X \sim N(20,2)  

Where \mu=20 and \sigma=2

We are interested on this probability

P(18

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

Using this formula we got:

P(18

And we can find this probability with the normal standard distribution and we got:

P(-1

7 0
4 years ago
Please help asap!!!!
Travka [436]

Answer:

Step-by-step explanation:

just add them all together . and the 2 beside the cm just multiply the answer by two .

3 0
3 years ago
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