# What is rational and irrational numbers?

## What is rational and irrational numbers?

Rational numbers are numbers that can be expressed as a fraction or part of a whole number. (examples: -7, 2/3, 3.75) Irrational numbers are numbers that cannot be expressed as a fraction or ratio of two integers. There is no finite way to express them. ( examples: √2, π, e)

What is rational number give example?

Any number that can be written as a fraction with integers is called a rational number . For example, 17 and −34 are rational numbers. (Note that there is more than one way to write the same rational number as a ratio of integers. For example, 17 and 214 represent the same rational number.)

### How do you find a number is rational or irrational?

Answer: If a number can be written or can be converted to p/q form, where p and q are integers and q is a non-zero number, then it is said to be rational and if it cannot be written in this form, then it is irrational.

How are artificial satellites different from natural satellites?

The main differences between the artificial satellites of the Earth and its natural satellite Moon are as follows: (1) The artificial satellites are much nearer to the Earth than its natural satellite Moon.

#### How are satellites used to survey the Earth?

3) Artificial satellites are used for surveying the natural resources of the Earth like minerals, agricultural crops and potential fishing zones in the sea, etc. This is done by using the artificial satellites called remote sensing satellites.

What was the purpose of the first artificial satellite?

Artificial satellites are used to study the Earth, other planets, to help us communicate, and even to observe the distant Universe. Satellites can even have people in them, like the International Space Station and the Space Shuttle. The first artificial satellite was the Soviet Sputnik 1 mission, launched in 1957.

## How many satellites are currently orbiting the Earth?

Any object that people have made and launched into orbit using rockets is called the artificial satellite. Presently, there are over a thousand active satellites orbiting the Earth. The satellite’s size, altitude and design depend on the use of the satellite.

06/11/2020