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Tatiana [17]
2 years ago
14

A solid metal rectangular pyramid has a base that measures 16 cm by 25 cm The Solid is melted and recast into a solid cavare pyr

amid of the same height. Find the length of the side of the base of the square pyramid.
Mathematics
1 answer:
Ymorist [56]2 years ago
5 0
12 yesyrsyrsjsnskwnbewnisenenekek
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If an regular interior angle of a regular polygon is 140 degrees, how many sides does the polygon have and I need the work
torisob [31]

Answer:

9 sides

Step-by-step explanation:

exterior angle + interior angle = 180° , so

exterior angle + 140° = 180° ( subtract 140° from both sides )

exterior angle = 40°

The sum of the exterior angles of a polygon = 360°

Dividing sum by the measure of 1 exterior angles gives number of sides

number of sides = \frac{360}{40} = 9

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2(4x - 3) - 8 = 4 +2x
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The variable x is equal to 3
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2 years ago
12. An equation is shown. 8 1/2 - 3 1/? = 5 3/12<br>What is the value of the missing number?​
weeeeeb [17]

Answer:

Step-by-step explanation:

Alright, lets get started.

8\frac{1}{2}-3\frac{1}{?}=5\frac{3}{12}

These are mixed number given.

Suppose the complete mixed number of second place is x.

Converting mixed numbers into fractions.

\frac{17}{2}-x=\frac{63}{12}

Adding x in both sides

\frac{17}{2}=x+\frac{63}{12}

x=\frac{17}{2}-\frac{63}{12}

Making common denominator

x=\frac{102}{12}-\frac{63}{12}

x=\frac{39}{12}

x=\frac{13}{4}

In mixed number form:

x=3\frac{1}{4}

So comparing with given equation, the '?' sign will be equal to 4.

Hence the answer is 4    :  Answer

Hope it will help :)

4 0
3 years ago
A right cubic prism has edges of 2 1/2 inches. How
3241004551 [841]

Answer:

Option D, the volume is 15.625 cubes

Step-by-step explanation:

For a cube of side length L, the volume is:

V = L^3

for the smaller cubes, we know that each one has a side length of 1 in, then the volume of each small cube is:

v = (1in)^3 = 1 in^3

Then:

1 in^3 is equivalent to one small cube

Here we know that the side length of our cube is (2 + 1/2) in

Then the volume of this cube will be:

V = [ (2 + 1/2) in]^3

To simplify the calculation, we can write:

2 + 1/2 = 4/2 + 1/2 = 5/2

Then:

V = ( 5/2 in)^3 = (5^3)/(2^3) in^3 = 125/8 in^3 = 15.626 in^3

This means that 15.625 small cubes will fill the prism.

So the correct option is D.  

8 0
2 years ago
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