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d1i1m1o1n [39]
3 years ago
8

What is the length of the hypotenuse of a right triangle if each of the two legs is 4 units?

Mathematics
1 answer:
lesantik [10]3 years ago
8 0

Use the pythagorean theorem (a^2 + b^2 = c^2)


4^2 + 4^2 = c^2


16+ 16 = c^2


32 = c^2


sqrt(32) = c


The third option you have listed is the right answer (its 4sqrt(2) simplified)

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An electrician has 4.1 meters of wire. How many strips of 7/10 meter long can he cut?
Svetlanka [38]
The answer is five strips
5 0
3 years ago
Find a polynomial for the sum of the shaded<br> areas of the figure. A = 6, B = 4
soldi70 [24.7K]

Answer:

The polynomial for the sum of the shaded  \pi r² - 20 \pi

Step-by-step explanation:

Given as :

The figure is shown which is of concentric circle with radius B , A , r

The radius B = 4 unit

The radius A = 6 unit

Let The sum of shaded portion = x unit

Now, The circumference of circle = 2 \pi R , where R is the radius

So, for circle with radius B.

The circumference = 2 \pi R = 2 \pi B

Or, The circumference = 2 \pi × 4 = 8 \pi

<u>Similarly</u>

For circle with radius A.

The circumference = 2 \piR = 2 \pi A

Or, The circumference = 2 \pi × 6 = 12 \pi

Now, <u>The area of circle with radius r is</u>

Area = \pi ×radius × radius

Or, Area = \pi r²

Now,

The sum of shaded region area = The area of circle with radius r - ( The circumference with radius B + The circumference with radius A )

Or, The sum of shaded region area =  \pi r² - ( 8 \pi + 12 \pi )

Or,  The sum of shaded region area =  \pi r² - 20 \pi

Hence The polynomial for the sum of the shaded area is \pi r² - 20 \pi  Answer

5 0
3 years ago
Veronica tried to solve an equation step by step.
Svetach [21]
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3 0
2 years ago
A container is shaped like a cylinder with half spheres on each end. The cylinder has a length of 30 centimeters and a radius is
Crank

The cubic centimeter one container can hold is 2,878.33 cm³.

<h3>What is the  cubic centimeter one container can hold ?</h3>

In order to determine the  cubic centimeter one container can hold, the volume of the container has to be determined.

Volume of the container = volume of the cylinder + (2 x volume of the hemisphere)

Volume of the cylinder = πr²h

Where:

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  • h = height

3.14 x 5² x 30 = 2355 cm³

Volume of a hemisphere = (2/3) x π x r³

2 x (2/3 x 3.14 x 5³) = 523.33 cm³

Volume of the container =  523.33 cm³ + 2355 cm³ = 2,878.33 cm³

To learn more about the volume of a hemisphere, please check: brainly.com/question/26840364

#SPJ1

7 0
2 years ago
Help please will mark Brainlyest plz help quickly
Helga [31]

Answer: 28*63

Step-by-step explanation:

- If first you want the answer, you must divide and then you would get 63.

- Then you take 63 and multiply 28 and you'll get 1,764

Hope I was able to help.

(For question 27)

8 0
3 years ago
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