All categories

2 years ago

What is the volume of this triangular pyramid? 9 cm 7 cm 8 cm

Mathematics

2 answers:

Finger [1]2 years ago

5 0

Answer:

84 cm³

Step-by-step explanation:

The volume of a pyramid is given by the formula ...

V = 1/3Bh

where B is the area of the base.

The base is shown as a right triangle with legs 8 cm and 7 cm. Its area is given by the triangle formula ...

A = 1/2bh

A = 1/2(8 cm)(7 cm) = 28 cm²

Then the volume of the triangular pyramid is ...

V = 1/3(28 cm²)(9 cm) = 84 cm³

dusya [7]2 years ago

4 0

Answer: 84

Step-by-step explanation:

You might be interested in

Plzzz helppp giving brainiest to the first one

aniked [119]

Answer:

Arsenic-74-is used to locate brain tumors. It has a half-life of 17.5 days. ... C. Find the amount remaining after 6 days from a 90-mg sample

4 0

2 years ago

Read 2 more answers

Consider the baggage check-in process of a small airline. Check-in data indicates that from 9am to 10am, 220 passengers checked

Lady bird [3.3K]

Answer:

3.6 minutes.

Step-by-step explanation:

According to the data given in the question, between 9 and 10 AM, 220 passengers have checked in which means that the check-in rate is 3.6 passengers per minute. If the average number of passengers waiting for check-in is 32 and if we assume that the check-in rate is constant throughout the day, then the average passenger had to wait in line for 3.6 minutes.

4 0

3 years ago

Formula lui paralelipiped.

Scorpion4ik [409]

V=abc
a=2(ab+act+bc)

hope it helps

8 0

3 years ago

How many ways are there to select 12 countries in the United Nations to serve on a council if 3 are selected from a block of 45,

sattari [20]

Answer: There are 2346953264 ways to do so.

Step-by-step explanation:

Since we have given that

Total number of selected countries = 12

Number of selected countries from a block of 45 = 3

Number of selected countries from a block of 57 = 4

So, remaining number of selected countries from a block of 69.

So, 12-(3+4)=12-7=5

Now, we need to find the number of ways, so we will use "Combination" to select that number of countries.

So, it becomes.

$^{45}C_3\times ^{57}C_4\times ^{57}C_5\\\\=14190\times 395010\times 4187106\\\\=2346953264$

Hence, there are 2346953264 ways to do so.

8 0

3 years ago

5.815 as a mixed number

zhenek [66]

5 815/1000 make sure to simplify :D

5 0

3 years ago

Read 2 more answers