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Murljashka [212]

2 years ago

6

What is the first quartile (Q1) of the data set?

2 answers:

VikaD [51]2 years ago

7 0

A 48.5 The answer is A because you would put the numbers in order from least to greatest, find the median, then find the median of the other two sets.

blsea [12.9K]2 years ago

5 0

Answer:

A ) First quartile (Q1): 48.5.

Step-by-step explanation:

Given : 51, 42, 46, 53, 66, 70, 90, 70 .

To find : What is the first quartile (Q1) of the data set?

Solution : We have given 51, 42, 46, 53, 66, 70, 90, 70 .

Arrange the data least to greatest

42 ,46, 51, 53, 66, 70, 70, 90.

First half is 42 ,46, 51, 53,

Second half is 66, 70, 70, 90.

First quartile (Q1): $\frac{46 +51}{2}$ .

First quartile (Q1): $\frac{97}{2}$ .

First quartile (Q1): 48.5

Therefore, A ) First quartile (Q1): 48.5.

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a park is 4 times as long as it is wide. if the distance around the park is 12.5 kilometers, what is the area of the park?

blsea [12.9K]

So, first, what are the two sides?

let's call then x and y

we know that 2(x+y)=12.5 (that's the distance around)

so that means that x+y=6.25 (I just divided both by 2)

now, x=4y (from "4 times as long as it is wide")

so we can substitute:

x+4x=6.25

5x=6.25

x=1.25

so one side, is 1.25 and the other will be 1.25*4=5

and for the area we multiply the two:

1.25*5=6.25 square kilometers, and this is the answer!

7 0

2 years ago

Read 2 more answers

One of the legs of a right triangle is 9 cm. If the area of the triangle is 225 cm², then the length of the other leg is

ioda

Given:

One of the legs of a right triangle is 9 cm.

The area of the triangle is 225 cm².

To find:

The length of the other leg.

Solution:

The area of a triangle is

$Area=\dfrac{1}{2}\times Base\times Height$

The area of a right triangle is

$Area=\dfrac{1}{2}\times (leg_1)\times (leg_2)$

Let x be the length of other leg.

$225=\dfrac{1}{2}\times (9)\times (x)$

$2\times 225=9x$

$\dfrac{450}{9}=x$

$50=x$

Therefore, the length of the other leg is 50 cm.

4 0

2 years ago

Evaluate \dfrac j4 4 j ? start fraction, j, divided by, 4, end fraction when j=12j=12j, equals, 12.

cricket20 [7]

We need to evaluate the value of fraction $\frac{j}{4}$ .

We also given j=12.

In order to evaluate the value of fraction $\frac{j}{4}$ , we need to plug j=12.

Plugging j=12, we get

$\frac{j}{4}= \frac{12}{4}$

We have 12 in numerator and 4 in denominator.

We always divide top number by bottom number.

So, we need to divide 12 by 4.

On dividing 12 by 4 we get 3.

<h3>Therefore, $\frac{j}{4} = 3.$ </h3>

3 0

3 years ago

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scoray [572]

More information is required to answer the question correctly.

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2 years ago

Factor x^2 +5x - 14 ??

Mrrafil [7]

Step-by-step explanation:

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3 years ago