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ArbitrLikvidat [17]
2 years ago
11

if two pyramids are similar and the ratio between the lengths of their edges is 2 7 what is the ratio of their volumes?

Mathematics
2 answers:
Lelechka [254]2 years ago
3 0

Answer:

The answer is 8:343.

Step-by-step explanation:

We can use Galileo's square cube law to calculate the ratio between two similar pyramids. The law is used to describe the change of the area or the volume of the shape when their dimensions increase or decrease:



V₁ and V₂ - volumes of pyramids,

l₁ and l₂ - the edges of pyramids.





finlep [7]2 years ago
3 0

Answer:

Answer is 8:343

Step-by-step explanation:

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Hi pls help me!!! thank you
elena-s [515]

Step-by-step explanation:

Circumference (C):

C = 2\pi r = 2\pi(5\:\text{ft}) = 31.4\:\text{ft}

Area (A):

A = \pi r^2 = \pi(5\:\text{ft})^2 = 78.5\:\text{ft}^2

6 0
2 years ago
The revenue of a company that makes backpacks is given by the formula R = 34.S0x, where x represents the number of backpacks sol
alexgriva [62]

Answer:

Revenue = 1380

Step-by-step explanation:

Given:

Revenue means the sales or turnover of a company when it sells its products. In other words, it is nothing but the income of a company on selling the products.

Here, the company is selling backpacks. So, revenue is the amount earned by the company on selling 'x' backpacks. The linear model to represent the same is given below.

The revenue received from selling 'x' backpacks is given as:

R=34.50x

Number of backpacks sold (x) = 40

Now, in order to find the revenue received on selling 40 backpacks, we need to plug in 40 for 'x' in the equation above and solve for the revenue, 'R'.

On plugging 40 for 'x', we get:

R=34.50\times 40\\\\R=1380

Therefore, the revenue received by the company on selling 40 backpacks is 1380.

8 0
3 years ago
Q3. Kylie sits two maths test. She scores 19/25 in the first one, and 16/20 in the second one.
Rina8888 [55]
She done better at the 2nd test because she only got 4 wrong but on the first test she got 6 wrong.
7 0
3 years ago
Read 2 more answers
How many solutions does the system of equations have?
Vlad1618 [11]

Answer:

one solution at x=1,y=4 point

4 0
2 years ago
Read 2 more answers
Find two decimals with a product between 1 and 2
Lemur [1.5K]
Here is a method that makes it seem easier. 
<span>Write down any number between 51 and 59. </span>
<span>For example you might choose 57 = 3*19 </span>
<span>Divide both numbers by 10 and write the answer as </span>
<span>0.3 * 1.9 = 0.57</span>
4 0
2 years ago
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