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kkurt [141]
2 years ago
5

Need help anyone can help

Mathematics
1 answer:
Ket [755]2 years ago
7 0

Answer:

b

Step-by-step explanation:

because

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The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 91 inches, and a standard d
Vesna [10]
The sample std. dev. will be (14 inches) / sqrt(49), or (14 inches) / 7, or 2 inches.

Find the z score for 93.8 inches:
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z = ------------------------------------- = ----------------- = 1.4
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Now find the area under the standard normal curve to the left of z = +1.4.

My calculator returns the following:

normalcdf(-100,1.4) = 0.919.  This is the probability that the mean annual precipitation during those 49 years will be less than 93.8 inches.
 
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3 years ago
The rectangle has an area of 42 sq. in. Which of these could be the dimensions of the rectangle?
photoshop1234 [79]

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Step-by-step explanation:

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3 years ago
What is the answer to 4x+y=10
Alina [70]

Answer:

y = -4x + 10

Step-by-step explanation:

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7 0
3 years ago
Write the expression without the fraction bar.
kirill115 [55]
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3 years ago
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You can do:
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3 years ago
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