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deff fn [24]
2 years ago
5

Why is 5 to the 2 power also read as 5 sqaured

Mathematics
1 answer:
Monica [59]2 years ago
4 0

The reason for this has to do with finding the area of a square. When you are looking for the area of a square, you use the rectangle formula (since a square is also a rectangle).

The formula is Area = Length * Width

However, since in a square, the length and width are the same, both get changed to the word "Side". As a result, we get the following formula.

Area = Side * Side

This can be simplified to:

Area = Side^2.

Since each number to the second power also shows the area of a square with that given length sides, it can also be called "squared".

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A rectangular cracker has a length of 5 centimeters and an area f 20 square centimeters. Find its perimeter.
iren [92.7K]

Answer:

18cm

Step-by-step explanation:

We have the length of the rectangle but we need to find the width which we'll call w. Area is a, l is length.

a = l * w

20 = 5 * w

divide both sides by 5 to cancel the multiplication by 5 on the right side

4 = w

The rectangle is going to have two sides that are the length of l, and two sides that are the the length of w. We're looking for the perimiter p.

p = 2l + 2w

p = (2 * 5) + (2 * 4)

p = 18

4 0
2 years ago
A pet store owner set the price of a bag of cat food at 50% above the cost. When it did not sell, the price was reduced by 20%,
algol [13]

Answer:

60

Step-by-step explanation:

5 0
3 years ago
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You and your friend play a video game. You have a final score of 40 points, and your friend has a final score of -21 points. by
Serhud [2]

Answer:40+(-21)= 19

Step-by-step explanation:

5 0
3 years ago
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What is the area of △ABC?
kirza4 [7]
Answer:
Area = 492.4 m²

Explanation:
The area of the triangle can be calculated using the side-angle-side method as follows:
Area = 0.5 * first side * second side * sin(angle included between these two sides)

This rule is illustrated in the attached image.

Now, we have:
AB = 40 m
BC = 25 m
angle B which is the angle included between AB and BC = 80 degrees

The given angle is included between the two given sides, therefore, we can apply the above rule to get the area.
Area of triangle = 0.5*40*25*sin(80)
Area of triangle = 492.4 m²

Hope this helps :)

3 0
3 years ago
What's 375 divided by fifteen
snow_lady [41]
25 is the answer to your question
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