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vlabodo [156]
3 years ago
10

Which graph shows the system of equations 4x+y=3 and 2x-3y=3?

Mathematics
1 answer:
dmitriy555 [2]3 years ago
5 0
The 2nd one is the right one.!
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The length of human pregnancies from conception to birth varies according to a distribution that is approximately Normal with me
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Answer:

0.5466

Step-by-step explanation:

Given that the  length of human pregnancies from conception to birth varies according to a distribution that is approximately Normal with mean 266 days and standard deviation 16 days.

Let X be the length of pregnancies

X is N(266,16)

To find out the probability that pregnancies last between 240 and 270 days (roughly between 8 months and 9 months)

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convert each into Z score as z=\frac{x-266}{16}

x=240 means Z = -1.625

x=270 means z=0.25

Required prob

= P(-1.625

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3n + 2

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Evaluate the summation of 3 n plus 2, from n equals 1 to 14..
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Therefore, the required summation is 343.
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3 years ago
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