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3 years ago

Who was the first person to prove the pythagorean theorem?

Mathematics

2 answers:

sasho [114]3 years ago

7 0

Answer:

It was named after Pythagoras, a Greek mathematician and philosopher. The theorem bears his name although we have evidence that the Babylonians knew this relationship some 1000 years earlier.

Step-by-step explanation:

sergeinik [125]3 years ago

3 0

Pythagoras & his colleagues

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Freddy has a shelf that is 72 over 5 inches wide. How many catalogs can Freddy arrange on the shelf if each catalog is 4 over 5

scZoUnD [109]

D
Step-by-step explanation:
Let Freddy could arrange n catalogs on the shelf.
The dimension of the shelf is:
72 over 5 inches wide.
The dimension of the catalog is:
4 over 5 of an inch thick.
n × Dimension of one catalog=Dimension of shelf.
i.e.
n×(4 over 5 inches)=72 over 5 inches
i.e.
n=72 over 5 inches/ 4 over 5 inches
i.e.
n=72/4
i.e.
n=18

5 0

3 years ago

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A bag of trail mix weighs 1 and 1/3 lbs.How much will 2 and 1/2 bags weigh

katrin2010 [14]

4/3 times 5/2 is 20/6, or 10/3. 3 1/3 pounds is the answer

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3 years ago

which ordered pair would form a proportional relationship with the point graphed below. A.(-10,30). B.(30,-15). C. ( -30,10). D.

Montano1993 [528]

Answer “D”

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Plz help i need help on this i do not get it

Andrej [43]

Area of circle 1 = πr²
Area of circle 1 = π (10)²
Area of circle 1 = 100π km²

Area of circle 2 = πr²
Area of circle 2 = π (5)²
Area of circle 2 = 25π km²

Number of times the bigger circle is greater than the smaller circle
$\dfrac{100 \pi }{25 \pi } = 4$

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Answer: The big circle is 4 times greater than the small circle.
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6 0

3 years ago

Read 2 more answers

Find the surface area of the pyramid shown to the nearest whole number.

Snezhnost [94]

Answer:

<h3>The answer is option A</h3>

Step-by-step explanation:

Surface area of a pyramid =

area of base + area of triangular faces

Since it's a square based pyramid

It's surface area is

area of base + 4( area of one triangular face)

Since the square has equal sides

<u>For square base </u>

Area of a square = l²

where l is the length

From the question l = 5

So we have

Area of square base = 5² = 25ft²

<u>For one of the triangular face</u>

Area of a triangle = ½ × base × height

base = 5

height = 6

Area = ½ × 5 × 6 = 15ft²

So the surface area of the pyramid is

25 + 4(15)

= 25 + 60

We have the final answer as

<h3>Surface area = 85 ft²</h3>

Hope this helps you

7 0

3 years ago