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pychu [463]
3 years ago
7

The scale factor of two similar polygons is 2:3. The perimeter of the larger polygon is 150 centimeters. What is the perimeter o

f the smaller polygon?
Mathematics
1 answer:
Zanzabum3 years ago
3 0
It’s 71 because without 72 u can’t get 71 and with that being said 61+800=2222
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A person is selected at random. If there are seven days in a week, what is the probability that the person was not born on a Tue
levacccp [35]

Answer:

5 out of 7.

Step-by-step explanation:

There are seven days in one week. They are asking what is the probability of the person chosen not being born in a Tuesday or Wednesday. There are five other days, so there are five other options.

I hope I helped you!

7 0
2 years ago
A manager at a local company asked his employees how many times they had given blood in the last year. The results of the survey
Lubov Fominskaja [6]

Answer:

Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779

And the deviation would be:

Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54

Step-by-step explanation:

For this case we have the following distribution given:

X        0         1       2       3       4         5        6

P(X)  0.3   0.25   0.2   0.12   0.07   0.04   0.02

For this case we need to find first the expected value given by:

E(X) = \sum_{i=1}^n X_i P(X_I)

And replacing we got:

E(X)= 0*0.3 +1*0.25 +2*0.2 +3*0.12 +4*0.07+ 5*0.04 +6*0.02=1.61

Now we can find the second moment given by:

E(X^2) =\sum_{i=1}^n X^2_i P(X_i)

And replacing we got:

E(X^2)= 0^2*0.3 +1^2*0.25 +2^2*0.2 +3^2*0.12 +4^2*0.07+ 5^2*0.04 +6^2*0.02=4.97

And the variance would be given by:

Var(X) = E(X^2) -[E(X)]^2 = 4.97 -(1.61)^2 =2.3779

And the deviation would be:

Sd(X) =\sqrt{2.3779}= 1.542 \approx 1.54

 

8 0
3 years ago
How many artists could be featured in the show?
lorasvet [3.4K]
I think the answer would it's 21
8 0
3 years ago
Please help ASAP!!!!!!!
kolezko [41]

Answer: the length of the base is 50 cm

Step-by-step explanation:

8 0
2 years ago
What is 5.589 x 10^6 written in standard form
timurjin [86]

Answer:

5,589,000

Step-by-step explanation:

5.589 x 1,000,000=

5,589,000

6 0
2 years ago
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