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Lilit [14]
3 years ago
15

Which statement about the polygons is true?

Mathematics
1 answer:
tatyana61 [14]3 years ago
6 0

Polygon A is similar to Polygon B because Polygon B is a dilation of Polygon A.

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The fitness center held a weight loss competition in which 128 people participated. The amount of weight loss was normally distr
iris [78.8K]

Answer:

37

Step-by-step explanation:

Given :

Sample size, n = 128

Mean, μ = 18

Standard deviation, σ = 5.4

Number of people who lost atleast 15 pounds :

The Zscore = (x - μ) / (σ)

Zscore = (15 - 18) / 5.4

Zscore = - 3 / 5.4

Zscore = - 0.5555

P(Z < - 0.555) = 0.28945

Number of people who lost atleast 15 pounds :

0.28945 * 128 = 37.0496

= 37 people

3 0
3 years ago
Please help me I need to do this like now!!!!
mihalych1998 [28]
Im PRETTY sure its 0 bc the words “Super awesome” dont have a “K” in them
3 0
2 years ago
Read 2 more answers
The diagram shows a plan for fencing off a section of a public park to make a dog park. A wall that separates the park from a hi
Orlov [11]
Where’s the diagram?
3 0
3 years ago
Read 2 more answers
Someone please help! I have spent lots of time on this and I’m still confused
vfiekz [6]

Answer:

its the 3rd choice.

Step-by-step explanation:

Firstly, we find angle BDC (180-90-30=60)

Now that we found it we can use the sine rule to find DB (which i put as an x), which is sin60/14=sin30/x, by cross multiplication, we find that its equal to a decimal number, i will use its root version to this easier, its equal to 14sqrt3/3 inches.

And now we use the pythagorean theorem to find DC, we find that it is equal to 28sqrt3/3

Now, we find angle BAC (180-90-(30+15)=45)

Again, we use the sine rule to find AB (whom i will refer to as x and from whom we will subtract DB to find the length of AD), so we cross multiply in sin45/14=sin(30+15)/x, it is equal to 14.

So since AB-DC=AD

14-(14sqrt3/3)= 5.917096231 (and we ound that to a 5.9)

3 0
3 years ago
Can someone help me please?​
jeka57 [31]

Answer:

85

Step-by-step explanation:

because A is half of that and if you divided 170 by 2 you would get 85, I think that's how you do it.

7 0
3 years ago
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