3 years ago

What are Numbers? Why do we need them?

Mathematics

1 answer:

il63 [147K]3 years ago

3 0

A number is a mathematical object used to count, measure, and label

You might be interested in

An equilateral triangle has perimeter P. The length of one side is P/3. Which expression is equivalent to the length on one side

irina1246 [14]

Answer: $3\times \dfrac{P}{3}=P$

Step-by-step explanation:

Given

The perimeter of one equilateral triangle is P

The lengths of the equilateral triangle are equal

Suppose x is the length of each side

$\therefore 3\times x=P\\\\\Rightarrow x=\dfrac{P}{3}$

i.e.

$\Rightarrow 3\times \dfrac{P}{3}=P$

3 0

3 years ago

A study of telephones and the risk of brain cancer looked at a group of 469 people who have brain cancer. The investigators matc

Svetlanka [38]

This is an A. <span>observational study. They are observing the use of cell phones differs between people with or without cancer.

Happy studying ^-^</span>

8 0

3 years ago

The quadrilateral obtained by joining the mid points of adjacent sides of a square is?

Anit [1.1K]

Answer:

Square

Step-by-step explanation:

the quadrilateral obtained by joining the mid points of adjacent sides of a square is a square

3 0

2 years ago

What is the approximate average rate of change of the function f(x) = -20(1.3)x^

ollegr [7]

Answer:

Step-by-step explanation:

7 0

2 years ago

Three expressions equivalent to the following: -90x + 60

Deffense [45]

Answer:

33beacuse you i have -90×+60=9×6=369-63

3 0

3 years ago

What are Numbers? Why do we need them?​

What are Numbers? Why do we need them?