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sweet-ann [11.9K]
3 years ago
12

MATH please heeeeeeelp​

Mathematics
2 answers:
Sunny_sXe [5.5K]3 years ago
7 0

Step-by-step explanation:

Its additive inverse!

VARVARA [1.3K]3 years ago
6 0
It is addictive inverses
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Multiply the factors which appear in both lists that you made in This gives you the HCF of 60 and 80
7nadin3 [17]

Answer:

HCF of 60 and 80 is 20.

Step-by-step explanation:

5 0
3 years ago
Please help me on #18, don't know how to do the question.
svetlana [45]

Option B) Determine the volume of the cake V= πr²h and divide that amount by 18

<u>Step-by-step explanation:</u>

  • It is given that, the birthday cake is in the shape of the cylinder.
  • Therefore, to find the entire volume of the cake, the volume of the cylinder formula is used.

<u>The volume of the cylinder is given by,</u>

Volume of the birthday cake = πr²h

After that, it was asked to find the volume of each piece of the cake.

In this case, the birthday cake is cut into 18 pieces.

We already know the total volume of the birthday cake which is πr²h.

In order to find the volume of each piece of cut cake, the total volume must be divided by the number of parts it has been cut into pieces.

Here, the whole part of the cake is 1.

The number of parts it has been divided after it is made into pieces = 18 parts.

Therefore, the volume of the birthday cake must be divided by 18 to get the volume of each piece of cake.

Option B) Determine the volume of the cake V= πr²h and divide that amount by 18 is correct.

8 0
3 years ago
Find the flow rate through a tube of radius 6 cm, assuming that the velocity of fluid particles at a distance r cm from the cent
vaieri [72.5K]

Answer:

791.68 cm/s

Step-by-step explanation:

The volume flow rate can be interpreted as the integral of fluid velocity over area

\dot{V} = \int\limits^6_0 {v(r) 2\pi r} \, dr\\\dot{V} = 2\pi\int\limits^6_0 {(25-r^2)r} \, dr\\\dot{V} = 2\pi\int\limits^6_0 {25r-r^3} \, dr\\\\\dot{V} = 2\pi[12.5r^2 - r^4/4]_0^6\\\dot{V} = 2\pi(12.5*6^2 - 6^4/4 - 12.5*0 - 0)\\\dot{V} = 2\pi*126 = 791.68 cm/s

7 0
3 years ago
What is 5t+16+6-5t can u help me
azamat
The answer is 22 because the 5t and -5t cancel each other
8 0
3 years ago
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Please help me! I'll give brainliest!
german
Tan A  = BC/AB = 15/8

answer is B. 15/8
6 0
3 years ago
Read 2 more answers
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