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solniwko [45]
3 years ago
7

5) An equation is called an if its solution set consists of all real numbers.

Mathematics
2 answers:
Helen [10]3 years ago
8 0

Answer:

a statement that the values of two mathematical expressions are equal

Step-by-step explanation:

kirill115 [55]3 years ago
5 0

Answer:

identity

Step-by-step explanation:

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Area of a circle is 80 cm². Work out the circumference of the circle.
GuDViN [60]

Answer:

The circumference of circle is: 31.714 cm

Step-by-step explanation:

Let C be the circumference of the circle

And A be the area of circle

It is given that:

A = 80cm^2

We have to find the radius first so that it can be used to find the circumference

The area of circle is given by the formula:

A = \pi r^2

Putting the value of area

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Taking square root on both sides

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Hence,

The circumference of circle is: 31.714 cm

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