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lapo4ka [179]
3 years ago
6

Full-time ph.d. students receive an average of $12,837 per year with a standard deviation of $3000. find the probability that th

e average salary of a group of 16 randomly selected ph.d. students is more than $13,000.

Mathematics
1 answer:
Ainat [17]3 years ago
7 0
It is about 41.4% according to my TI-83/84 calculator.

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Lucy’s chocolate bar is 54% cocoa. If the weight of the chocolate bar is 54 grams, how many grams of cocoa does it contain? Roun
Masteriza [31]

Answer:

The chocolate bar contains 29.2 grams of cocoa.

Step-by-step explanation:

Given that Lucy’s chocolate bar is 54% cocoa and the weight of the chocolate bar is 54 grams.

Hence, the amount of cocoa in the chocolate bar is given by

54% of 54 grams

54% percentage means 54/100 = 0.54

Hence, the amount of cocoa in the chocolate bar is

0.54\times54\\=29.16

When rounded to the nearest tenth, 29.16 should be equal to 29.2

Hence, the chocolate bar contains 29.2 grams of cocoa.

4 0
3 years ago
PLEASE HELP! ILL MARK BRAINLIEST
Lunna [17]

Subtracting a number from x shifts the graph that may places tot he right

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The answer would be: Shift the graph of y = x^2 right 2 units and then down 10 units.

4 0
3 years ago
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Deisha can build a fence in 15 hours, and Travis can build a fence in 12 hours. How long will it take them together to build a f
Basile [38]

Answer:

6\frac{2}{3}

Step-by-step explanation:

Deisha's build rate = 1 fence per 15 hours = 1/15 fences per hour

Travis's build rate = 1 fence per 12 hours = 1/12 fences per hour

Working together, their combined rate is 1/15 + 1/12 = 3/20 fences per hour

So it takes them 20/3 = 6 2/3 hours per fence

6 0
2 years ago
Use the image below to answer the following question. Find the value of sin x° and cos y°. What relationship do the ratios of si
Licemer1 [7]

Answer:

There are both on the same side of the image "O and P"

If this dose not help please tell me!

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2 years ago
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The capacity of a swimming pool is given by C = l × w × (d1 + d2)/2, where l is the length, w is the width, d 1 is the depth of
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I think the first one is correct.
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3 years ago
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