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Elis [28]
3 years ago
12

Marisa has 2 pennies, 4 nickels, and 5 dimes in her pocket. How many different arrangements are possible if she removes one coin

at a time from her pocket?
Mathematics
2 answers:
Radda [10]3 years ago
3 0
-2 pennies, 4 nickels, 4 dimes
-2 pennies, 4 nickels, 3 dimes
-2 pennies, 4 nickels, 2 dimes

And so on. Do you kind of get the idea?
ella [17]3 years ago
3 0
Oh gawd these are the most annoying questions lol you could use a probability tree diagram to find the answer by starting first by finding the probability of choosing a penny then a nick then a dime and so on.. gl ... i dont think exams would test this xD
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Mademuasel [1]

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Yes, the x value is increasing by one every time, and the y value is decreasing by 3 every time.

Step-by-step explanation:

4 0
2 years ago
A scientist was in a submarine below sea level, studying ocean life. Over the next ten minutes, she dropped 24.9 feet. How many
Harrizon [31]

The Depth of the Scientist before dropping is;  42.2 ft

<h3>How to calculate sea level elevation?</h3>

It is pertinent to note that sea level is usually considered zero level. Thus, one is either above the sea level (positive sign) or below the sea level.

Now, we are told that the scientist was already below the sea level before she dropped 24.9 ft.

Now, if after dropping 24.9 ft, she is now 66.7 ft below sea level, then it means that the depth she was at before dropping 24.9 ft is;

Depth before dropping 24.9 ft = 66.7 - 24.9

Depth before dropping = 42.2 ft

Read more about Sea level Elevation at; brainly.com/question/2092614

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8 0
1 year ago
I need to find surface area of a cylinder. Formula being used: S.A= L x W +
Arturiano [62]

Answer:

90π yd²

Step-by-step explanation:

the surface area of a cylinder is the sum of the lateral area and twice the aera of one end of the cylinder:  π·d·l, where l represents the length of the cylinder.  Here, the lateral surface area is π·6 yd·12 yd, or 72π yd².

The two ends add the following to the total surface area:

2·π·(d/2)², or 2π·d²/4.

Thus, the total surface area of the cyl. is

A = 2π·(6 yd)²/4 + 72π yd², or

A = 18π yd² + 72π yd² = 90π yd²

Note:  Please check your source.  L x W +  2pi ·r ^2 is incorrect.

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3 years ago
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Lilit [14]

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I hope it helpful

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