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marysya [2.9K]
2 years ago
12

Which expression has exactly two terms 4n Ab2 5y2 3x5

Mathematics
2 answers:
jek_recluse [69]2 years ago
6 0

Answer: 3x +5

Step-by-step explanation:

I did it

mojhsa [17]2 years ago
4 0
The expression 5 y 2 has exactly two terms
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Which one is greater 3/10 or 2/5
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2/5

Step-by-step explanation:

2/5=4/10

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Let A and B be subsets of R. (a) If x ∈ (A ∩ B)c, explain why x ∈ Ac ∪ Bc. This shows that (A ∩ B)c ⊆ Ac ∪ Bc. 12 Chapter 1. The
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Since the area under the normal curve within two standard deviations of the mean is 0.95, the area under the normal curve that c
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Answer:

X \sim N (\mu ,\sigma)

And for this case we know this condition:

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By the complement rule we know that:

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But since the distribution is symmetrical we know that:

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So then the statement for this case is FALSE.

b. False

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

For this case if we define the random variable of interest X and we know that this random variable follows a normal distribution:

X \sim N (\mu ,\sigma)

And for this case we know this condition:

P(\mu-2\sigma

By the complement rule we know that:

P(X< \mu -2\sigma \cup X>\mu +2\sigma) = 1-0.95=0.05

But since the distribution is symmetrical we know that:

P(X\mu +2\sigma) = 0.025

So then the statement for this case is FALSE.

b. False

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3 years ago
Last month, a sporting goods store sold a total of 100 T-shirts and running shorts. The number of T-shirts sold was 10 more than
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D.
30x2=60
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Answer:

I dont know if this is correct but try it! the answer is 30cm

Step-by-step explanation:

do 10x3

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