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3241004551 [841]
2 years ago
11

2- Marcela deseja comemorar seu aniversário com uma festa e para isso pesquisou preços de duas empresas especializadas. A empres

a "Feliz Aniversário" cobra uma taxa fixa de R$ 200,00 e mais R$ 20,00 por convidado, enquanto a empresa "Parabéns a Você" cobra uma taxa fixa de R$ 100,00 e R$ 25,00 por convidado. Para que os preços oferecidos pela empresa "Feliz Aniversário" sejam mais vantajosos para Marcela, o número de convidados para sua festa de ser
a) maior que 20
b) menor que 20
c) menor ou igual a 20
d) maior ou igual a 20​
Mathematics
1 answer:
anygoal [31]2 years ago
4 0
Mdmdmdmksksksksksmsksksms
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The height, h, of the equilateral triangle is given by h =5cotΘ, where Θ is 30 degrees. Can someone help me with this? I don't u
Hoochie [10]

You don't even need the picture to solve this one.

You said that      h = 5 cot(Θ) ,    and you said that  Θ  is 30 degrees.
All you need now is to find the cotangent of  Θ, plop that into the equation,
and the solution practically jumps off the paper into your lap.

To find the cotangent of 30 degrees, you can use a calculator, look it up
in a book, read it off of a slide rule if you have one, draw a picture of a
30-60-90 right triangle etc.  You'll find that the cotangent of 30 degrees
is  √3 .  That's about 1.732 .

So your equation is    h = 5 (1.732)  =  <em>8.66  </em>(rounded)

Apparently, somebody gave you the equation, and asked you to find 'h'.
Once you had the equation, you didn't even need to know that  'h'  has
anything to do with a triangle.


5 0
3 years ago
What is 30% of a book with 210 pages
Masteriza [31]

Answer:

63 pages

Step-by-step explanation:

I AM NOT SURE THIS IS CORRECT. I WILL EXPLAIN MY REASONING THOUGH.

Take 210 (pages) and multiply that by 30% or 0.3 that will give you 63. This means that 30% of the book is 63 pages

7 0
3 years ago
 first correct answer will be marked as branders please help fast
Svetllana [295]

Answer:

even if the first answer is wrong? Just kidding, the first one is -9, second is 0, third is 9, and last is 18

Step-by-step explanation:

-9

0

9

18

4 0
3 years ago
Read 2 more answers
15 POINTSSS AND BRAINLIEST
Ludmilka [50]
1.) 52:97.5
2.) 1:1.875

Hope this helps!
5 0
3 years ago
Plz help u have to do all 3 parts
Jobisdone [24]

Answer:

all you have too do is 750*750 = 562,500

Step-by-step explanation:

i hope this helps and pleas give me a stare and a heart thank you so much if you do and if you do not still thank you

7 0
3 years ago
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