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Arlecino [84]
3 years ago
8

Round the following to three significant figures. a 17.5555 km 16 b. 1.0007 c.23.34271d. 99.991

Chemistry
1 answer:
julsineya [31]3 years ago
4 0
A) 176 b)1.00 c)23.3 d)100
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In order to change meters simply move the decimal place two times to the right. You would move it like this: 40 (once), 400(twice). 4 meters is equal to 400 centimeters. Hope this helped :)

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If the length of one side of a square is 12.0 m, what is the perimeter of the square? Express the perimeter with the appropriate
Cerrena [4.2K]

The perimeter of a square whose length is 12.0 m is 48 cm.

<h2>Further Explanation </h2><h3>Area </h3>
  • Area is a measure of how much space is occupied by a given shape.
  • Area of a substance is determined by the type of shape in question.

For example;

  • Area of a rectangle is given by; Length multiplied by width
  • Area of a triangle = 1/2 x base x height
  • Area of a circle = πr². where r is the radius of a circle,
  • Area of a square = S², Where s is the side of the square.etc.
<h3>Perimeter </h3>
  • Perimeter is defined as the distance along a two dimension shape.  Perimeter of different shapes is given by different formulas

For example;

  • The perimeter of a rectangle = 2(length+width)
  • The perimeter of a triangle = a+b+c; where a, b and c are the sides of the triangle. etc.

In this case;

We are given one side of a square as 12.0 cm

But Perimeter of a square is given by; 4 × s

Thus; Perimeter = 4 × 12 units

                           = 48 units

Keywords; Perimeter, Area

<h3>Learn more about;</h3>
  • Perimeter of a square example: brainly.com/question/3619302
  • Area of a square: brainly.com/question/1322653

Level: Middle school

Subject; Mathematics

Topic: Area and Perimeter

4 0
3 years ago
Which models of the atom include a structure that is mostly made of empty space?RutherfordThomsonBohrQuantum mechanical
Luba_88 [7]
<h2>Answer:</h2>

Rutherford's models

<h2>Explanations:</h2><h2>What is the electron cloud model?</h2>

There are known as the region where electrons are found especially in the nucleus.

According to the five basic atomic models which have contributed to the structure of the atom itself, the Rutherford's models of the atom include a structure that is mostly made of empty space compared to thomson that proposed the plum pudding model of the atom

4 0
1 year ago
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