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3 years ago

How do u define demography

2 answers:

7 0

Demography is the study of human populations, in reference to size, quantities, diversity, location and distribution among the planet. Demographers look at statistics such as birth and death rates.

Setler79 [48]3 years ago

7 0

Answer:Demography is the statistical study of the size, structure, and distribution of a population. This includes studying the number of births and deaths a population has as well as how that population changes over time.

Step-by-step explanation:

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What is the expanded form for 298.2?

nydimaria [60]

200+90+8+.02 is the correct answer

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3 years ago

In triangle ABC, angle A is 75o and angle B is 20o. Select the triangle that is similar to triangle ABC.

Arturiano [62]

Answer:

A. $\triangle$ DEF where $\angle D = 75^{\circ}$ and $\angle E = 20^{\circ}$ .

Step-by-step explanation:

At first we must keep in mind that two triangles are similar when they have same angle configuration, that is, each pair of angles is congruent. If $\triangle$ ABC and $\triangle$ DEF, then $\angle A \equiv \angle D$ and $\angle B \equiv \angle E$ . Hence, $\angle D = 75^{\circ}$ and $\angle E = 20^{\circ}$ .

In a nutshell, correct answer is A.

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3 years ago

The equation $(x - 7)^2 + (y + 13)^2 = 12$ represents a circle. What is its radius?

miskamm [114]

Answer:

Step-by-step explanation:

The standard equation of a circle is expressed as;

(x-a)²+(y-b)² = r² where;

(a, b) is the center of the circle

r is the radius of the circle

Given the equation (x - 7)^2 + (y + 13)^2 = 12

On comparing;

r² = 12

Take the square root of both sides

√r² = √12

r = √12

r = √4*3

r = 2√3

Hence the radius of the circle is 2√3

7 0

3 years ago

The data represents the height, in feet, of various buildings. Find the Interquartile Range.

N76 [4]

Answer: 6

Step-by-step explanation:

7 0

3 years ago

david is buying a cheese wheel priced at $650 before tax. the store charges 8% sales tax. what is the total price including tax,

Marina CMI [18]

I think he pays $702.

Basically,

650 • .08 (move the decimal over two to the left, that’s what you get) = 52. Then I did 650 + 52 and got $702.

6 0

3 years ago