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emmainna [20.7K]
3 years ago
15

How do i do this question? someone help

Mathematics
1 answer:
lesya [120]3 years ago
8 0
There are 360 degrees in the rhombus which means the equilateral triangles has 180 degrees (because it is half the rhombus and also it is the angle sum of a triangle). It is equilateral meaning all sides and angles are the same so they all must be 60 (180/3)
Now this must mean that angle a is equal to the opposing angle being 60
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finlep [7]

Answer:

Hi what language is that I don't know that language so I cannot answer your question

7 0
3 years ago
Find the value of c.....
Makovka662 [10]

Answer:

Step-by-step explanation:

the sum of the angles in a triangle is 180

33+2c+c-18=180

3c=180+18-33

3c=165

c=165/3

c=55

7 0
2 years ago
A researcher surveyed people as they left a museum, asking whether they visited the gift shop and whether they watched the film
BARSIC [14]
Hey there!


P(y) = 0.46

P(x) = 0.49

P(y') = 0.54

P(x') = 0.51

P(y and x') = 0

x = person that watched the film

y = person that visited the gift shop


 P(y and x') / P(x')

0.1 / 0.51 = 0.196 

Now convert that into a percentage!

0.196 = 19.6%

Your answer is 19.6%


Hope I helped!

Let me know if you need anything else!

~ Zoe

5 0
2 years ago
A company has 200 machines. Each machine has 129 probability of not working. If you were to pick 40 machines randomly, the proba
alexgriva [62]

The probability that 5 would not be working is 0.18665, the probability that at least one machine would be working is 0.00602 and the probability that all would be working is 1.

Given a company has 200 machines. Each machine has a 12% probability of not working.

If we working pick 40 machines randomly then we have to find the probability that 5 would not be working, the probability that at least one machine would be working, and the probability that all would be working.

So

1) probability that 5 would not be working

C(40,5)·0.12⁵·0.88³⁵= 40!/(5!(40-5)!)·0.12⁵·0.88³⁵

                                ≈ 0.18665

2)  probability that at least one machine would be working

0.88⁴⁰ ≈ 0.00602

3) probability that all would be working

1 - 0.12⁴⁰ ≈ 1.0000

Learn more about probability here: brainly.com/question/24756209

#SPJ10

7 0
1 year ago
S2.256 T2.22 U2.099 V2.71
77julia77 [94]

Answer:

D) V, S, T, U

Step-by-step explanation:

Note that the question is asking for the order from greatest to least.  In the case of decimals, I find it easier to compare by placing them in a line going down and filling in zeros where needed to make them the same place values:  

2.256 - S

2.220 - T

2.099 - U

2.710 - V

Since they all have the same first digit, I will look at the next digit following the decimal.  '7' is the greatest, then '25', then '22' then '09':

D) V, S, T, U

6 0
2 years ago
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