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levacccp [35]
3 years ago
10

A regular pentagon has a perimeter of 15x+35 What is the length of one side of the pentagon?

Mathematics
1 answer:
valentinak56 [21]3 years ago
8 0

Answer:

-3.5 or -7/2

Step-by-step explanation:

Pentagons have five sides, so 15x+35

15x+35=5

subtract 35

15x+35-35=5x-35

simplify

15x=5x-35

subtract 5x

15x-5x=5x-35-5x

simplify

10x=-35

divide by 10

\frac{10x}{10}=\frac{-35}{10}

simplify

x=-\frac{7}{2} or also -3.5

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A pyramid has the same volume as a cube of side 10.0 cm
Svetlanka [38]

The height of the pyramid is 14.4 cm.

<h3>How to find the height of the pyramid?</h3>

volume of a pyramid = 1 / 3 Bh

where

  • B = base area
  • h = height of the pyramid

Therefore,

volume of the cube = L³

where

  • L = side length of the cube

Hence,

volume of the cube = 10³

volume of the cube = 1000 cm³

The volume of the pyramid is the same with the  volume of the cube.

Hence,

1000 = 1 / 3 Bh

The height of the pyramid is the same as the square base.

Therefore,

1000 = 1 / 3 (h²)h

1000 = 1  / 3 h³

cross multiply

3000 = h³

h = ∛3000

h = 14.4224957031

Hence, the height of the pyramid is 14.4 cm.

learn more on pyramid here:brainly.com/question/19813447

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8 0
2 years ago
Can someone please help me with this problem?
monitta
1. L is parallel to n 1. Given
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8 0
3 years ago
17. Solve for x. *<br> 21x + 5<br> 40°<br> 13.r + 5
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Answer:

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Step-by-step explanation:

Another Answer is Futile

6 0
3 years ago
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8 0
3 years ago
Find the smallest number that divides by 44 55 and 220 leaving remainder 5
galina1969 [7]
The numbers from which we are to determine the smallest number that can be divided leaving a remainder of 5 are 44, 55, and 220. We have to do the prime factorization of all the numbers to determine their least common multiple (LCM).

Factorization of 44:
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Factorization of 55:
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Since 220 has all the factors from 55 and 44 then, the least common multiple is 220. Add 5 to the LCM in order to determine the unknown. 

<em>ANSWER: 225</em>
8 0
3 years ago
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