1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Naily [24]
3 years ago
13

In 1980, the median age of the U.S. population was 30.0; in 2000, the median age was 35.3.

Mathematics
1 answer:
miss Akunina [59]3 years ago
4 0

Answer:

y = 0.265x - 494.7

Step-by-step explanation:

Let median age be represent by 'a' and time be represent by 't'

In 1980, median age is given 30

which means that

a₁ = 30

t₁ = 1980

In 2000, the median age is given 35.3

which means that.

a₂ = 35.3

t₂ = 2000

The slope 'm' of the linear equation can be found by:

m = (a₂ - a₁) /(t₂ - t₁)

m = (35.3 - 30)/(2000-1980)

m = 0.265

General form of linear equation is given by:

y = mx + c

y = 0.265x +c

Substitute point (1980,30) in the equation.

30 = 0.265(1980) + c

c = -494.7

Hence the the linear equation can be written as:

y = mx + c

y = 0.265x - 494.7

You might be interested in
Use absolute value notation to represent the distance between x and 8 is no more than 4
ivanzaharov [21]
The distance: use absolute value
Between x and 8: x-8

The distance between x and 8: | x-8 |

“is no more than” means it can be that or be less than that, so use ≤

The distance between x and 8 is no more than 4

| x-8 | ≤ 4
3 0
3 years ago
Whats the relationship between fractions and decimals?
kogti [31]
They are both equal to below zero
3 0
3 years ago
Read 2 more answers
Can someone help me question 17? Pls I really need how I can solve this question???
Anit [1.1K]
You can use the distance formula: d = sqrt((second x value - first x value)^2 + (second y value - first y value)^2):
answer : d = sqrt((3+2)^2+(6+6)^2) = 11.95826074 units
4 0
3 years ago
this visual representation shows the sets of real numbers. classify the number −25. select all terms that are correct. natural w
vekshin1

-25 is an integer and a rational number.

<h3>What is number system?</h3>
  • A system of writing numbers is known as a number system.
  • It is the mathematical notation for consistently employing digits or other symbols to represent the numbers in a particular set.
  • It represents the arithmetic and algebraic structure of the numbers and gives each number a distinct representation.

Now,

  • Natural numbers are positive integers with a range of 1 to infinity; nevertheless, they do not include zero. -25 wouldn't be a natural number because it is a negative number.
  • A group of numbers known as a whole number consists of all positive integers and 0. This wouldn't be a whole number because -25 isn't a positive number.
  • Any real number that cannot be represented as the quotient of two integers is said to be irrational. Square roots of irrational numbers are also frequently seen. -25, however, is not a square root.
  • Any number that can be expressed as a ratio, or a fraction, of two integers, is referred to be a rational number. Fractions, decimals, negative decimals, and other rational numbers are very prevalent. Since -25 can be represented as a ratio of two numbers. it is a rational number.
  • A whole number that can be either positive, negative, or zero is known as an integer. As -25 is negative and a whole number( when positive), it is an integer.

Hence, -25 is an integer and a rational number.

To learn more about number system, refer to the link: brainly.com/question/13162939

#SPJ4

6 0
1 year ago
Which of the following can be used to prove that the triangle EFG is a right triangle.
Leviafan [203]
If you use a ruler and if it's more than 120° its not a right triangle it has to be 120°
8 0
3 years ago
Other questions:
  • Help!!!! YOU WILL BE REWARDED WITH BRAINLIEST AND 15 POINTS! HELP ASAP LOOK AT MY FILES THAT I UPLOADED
    6·1 answer
  • 14x+42y i need help factoring this problem XD
    12·1 answer
  • Find the measure of
    14·2 answers
  • HELP PLEASE BE QUICK <br> The answer is 63 you just have to find out how to get it
    11·2 answers
  • Among various ethnic groups, the standard deviation of heights is known to be approximately three inches. We wish to construct a
    11·1 answer
  • Please answer correctly
    11·1 answer
  • There were five teams entered in a competition. Each team consisted of either only boys or only girls. The number of team member
    5·1 answer
  • Ali opened a saving account with 500$. After 2 years the total interest he earned was 10$. What was the annual interest rate?
    15·1 answer
  • The marketing manager of a tourist company wants to be able to predict the number of calls to a toll free number asking for pamp
    12·1 answer
  • sidney went on a bycycle trip.his distance from home is given by f(t)=17t+3 after 4 hours how far from home is he
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!