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bekas [8.4K]
3 years ago
5

4 less than 2 times the number x

Mathematics
2 answers:
Ulleksa [173]3 years ago
6 0

Answer:

2x-4

Step-by-step explanation:

1) Since it says 2 times the number x, it is 2x

2) Then, it says 4 less than 28

3) The equation/answer would be 2x-4

gladu [14]3 years ago
5 0

Answer:

The answer is 2x-4

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Answer:

Step-by-step explanation:

√36=6

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4 years ago
A manufacturer knows that their items have a normally distributed length, with a mean of 13.2 inches, and standard deviation of
Lana71 [14]

Answer:

0.5358

Step-by-step explanation:

Given

mean = μ = 13.2 inches

and

SD = σ = 2.2 inches

We have to find z-score for the given value 13.4 first

z-score = (x-μ)/σ

=  (13.4-13.2)/2.2

=0.2/2.2

=0.0909

We have to find the area to the left of given z-score

The area to the left is 0.5358

So, the probability of choosing an item with length less than 13.4 is 0.5358 ..

5 0
3 years ago
Dolores is going to make a sandwich. She has 2 types of bread, 3 types of cheese, and 2 types of meat to choose from. How many d
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Twelve hours later then we went to sleep and then woke me back at my house after my birthday and I got invited
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2 years ago
The probability a person is infected by a certain cold virus is 0.2. If a random sample of 12 people is taken, what is the proba
mezya [45]

Answer:

   

Step-by-step explanation:

It is given that The probability a person is infected by a certain cold virus is 0.2 that is p=0.2, then q=1-0.2=0.8.

Now, we have to find the probability that at least one person will be affected by the cold virus, that is P(x>1).

P(x>1)=1-(P(x=0)+P(x=1))

=1-(nc_{x}p^xq^{n-x}+nc_{x}p^xq^{n-x})

=1-(12c_{0}p^0q^{12}+12c_{1}p^1q^{11})

=1-((0.8)^{12} +12(0.2)(0.8)^{11})

=1-(0.8+12(0.2))(0.8)^{11}

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=1-(3.2)(0.0858)

=1-0.274

=0.726

Thus, probability that at least one person will be affected by the cold virus will be=0.726.

3 0
3 years ago
Members of the debate team are traveling to a tournament, where they will stay in a hotel for 4 nights. The total cost for each
AveGali [126]

Answer:

No they will not be able to afford Hotel D.

Step-by-step explanation:

Regardless of the number of members in the team, if price per night= $55, then 4 nights would cost  4*55= $220

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