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Maksim231197 [3]
3 years ago
12

Which of the following is a list of unlike terms, or terms that cannot be combined?

Mathematics
1 answer:
Vilka [71]3 years ago
3 0

Answer:

C

Step-by-step explanation:

C is the only choice where all given options have different or no coefficients.

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Hiiii help please ahh
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Answer:

Question 1 Answer : x^2 - 2y^2

Question 2 Answer: x^2\pi - 36\pi

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2 years ago
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An array showing the factor pair of three and 6 would have 3 rows of 6 objects. True? Or False?
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false

Step-by-step explanation:

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I need help understanding how to do this problem (image attached).
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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
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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
What is the perimeter of a rectangle with a. Length of 13 feet and a width of 9 feet
lisabon 2012 [21]
13 + 13 + 9 + 9
The perimeter is 44
5 0
3 years ago
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