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hoa [83]
3 years ago
10

Can someone help me please

Mathematics
1 answer:
Taya2010 [7]3 years ago
4 0

Answer:

n = -1

Step-by-step explanation:

n^2 + 5n + 1 = 3n

N^2 +2n +1 = 0       (subtract 3n from both sides)

(n+1)(n+1) = 0   (factor

n+1 =0; n= -1

n+1 = 0  ; n=-1

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How do you find volume of sphere, cylinder, cone ? ... explaining please
boyakko [2]

Answer:

hmmmm

Step-by-step explanation:

Cone

The volume of a cone is linked to the volume of a cylinder. A cone is one third of the volume of a cylinder. The volume of a cone is ¹/₃ × π × r² × l. To calculate the volume we multiply these values together. The answer will be written in units³.

Sphere

The volume of a sphere is ⁴/₃ × π × r³. To calculate the volume we multiply these values together. The answer will be written in units³.

Cylinder

The volume of a cylinder is π × r² × l (r is the radius of the circle and l is the length of the cylinder). To calculate the volume we multiply these values together. The answer will be written in units³. It is more accurate to use π = 3.142 or the π button on a calculator.

   A cone is a 3D shape with 2 faces and one edge

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website I used: https://www.bbc.co.uk/bitesize/topics/zrf3cdm/articles/ztqsdxs

I hope this helped!

5 0
2 years ago
in a football tournament at group stage there are five football teams in a group, Brazil, England, Scotland, Argentina and Franc
emmasim [6.3K]

Answer:

6/25

Step-by-step explanation:

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7 0
3 years ago
Log 64 = x. Find X<br> ⁴
ozzi

Answer:

3

Step-by-step explanation:

Rewrite the logarithmic notation to index notation.

4^x=64

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6 0
3 years ago
Read 2 more answers
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Helga [31]

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7 0
1 year ago
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Gennadij [26K]

7/9 ÷ 3/9 =

= (7•9)/( 3•9)

= 63/27 = 7/3

Answer is 7/3

6 0
1 year ago
Read 2 more answers
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