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koban [17]
3 years ago
15

What is the value of y?

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
3 0
UT = 3 √3

A = 1/2 *12 * 3√3 = 18√3
18√3 = 6y/2
y = 6√3
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Wittaler [7]

Answer:

Option D. 5x + 12y + 4z is the corrct one.

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Newborn babies: A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights
Fed [463]

Answer:

a) 615

b) 715

c) 344

Step-by-step explanation:

According to the Question,

  • Given that,  A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 732 babies born in New York. The mean weight was 3311 grams with a standard deviation of 860 grams

  • Since the distribution is approximately bell-shaped, we can use the normal distribution and calculate the Z scores for each scenario.

Z = (x - mean)/standard deviation

Now,

For x = 4171,  Z = (4171 - 3311)/860 = 1  

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Next, multiply that by the sample size of 732.

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  • For part b, use the same method except x is now 1591.    

Z = (1581 - 3311)/860 = -2    

  • P(Z > -2) , using the Z table is 1 - 0.0228 = 0.9772 . Now 732(0.9772) = 715.3104, so approximately 715 will weigh more than 1591.

 

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Z1 = (3311 - 3311)/860 = 0

Z2 = (5031 - 3311)/860= 2  

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3 years ago
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Answer:

Given

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From the answer, we can see that the number of cups is not really proportional to the height of the stack, because the average of stack one and stack 2 are different.

Step-by-step explanation:

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REY [17]

Answer:

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ryzh [129]
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These numbers are 9 and 10.
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