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4 years ago

Radius of 0.75 centimeters is rational or irrational

Mathematics

1 answer:

ella [17]4 years ago

6 0

A radius of 0.75 would be rational because the decimal ends and does not repeat itself.

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3 years ago

Read 2 more answers

A bride and groom both invited guests to their wedding. The bride invited twice as many women as the groom did, and the groom in

n200080 [17]

Answer:

option 1) 50

Step-by-step explanation:

Let m and w denote the men and women respectively.

From the question, if the groom invited w number of women, then bride invited 2w number of women.

Also, if the bride invited m number of men,then the groom invited 2m.

Hence we can write the following maths equation:

w+2m=105.........1

2w+m=135.........2

We multiply eqn(1) by 2 to get eqn(3)

This implies that,

2w+4m=210.......3

We then subtract eqn (2) from eqn(3) to obtain;

3m=75

we divide through by 3

$\implies \frac{3m}{3} = 75$

$\implies m= 25$

Substituting the value of m into eqn (1)

to find the value for w

$\implies w + 50 = 105$

subtracting 50 from both sides.

$\implies w + 50 - 50= 105 - 50$

$\implies w+2(25)=105$

$\implies w= 55$

So we can say the :

bride invited 25 men and 110 women,

groom invited 50 men and 55 women.

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3 years ago

Identify the type of data (qualitative/quantitative) and the level of measurement for the data described below. Explain your ch

ella [17]

Answer:

Option A) Quantitative, because numerical values, found by either measuring or counting, are used to describe the data

Option C) Ratio, because the differences in the data can be meaningfully measured, and the data have a true zero point.

Step-by-step explanation:

We are given the following in the question:

"The average monthly rainfall in inches for a certain city throughout the year"

Qualitative or quantitative:

Quantitative data are measures of values or counts and are expressed as numbers.
Qualitative data are measures of 'types' and may be represented by a name, symbol, or a number code. They are non-parametric values.

Thus, the given quantitative data is quantitative because rainfall is always measured and the output is expressed in numerical values.

Option A) Quantitative, because numerical values, found by either measuring or counting, are used to describe the data

Level of measurement:

Ordinal: These are the qualitative variable whose order plays an important role.

Interval: When true zero does not exist. The negative values of such variables make sense.
Ratio: When true zero exist. The negative values of such variable does not make any sense.

Since,for the given data true zero exist and a negative values make no sense, thus its is ratio.

Option C) Ratio, because the differences in the data can be meaningfully measured, and the data have a true zero point.

3 0

3 years ago