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Anton [14]
3 years ago
7

Vincent flipped three coins during a probability experiment. The outcomes of the first 40 trials are shown in the table.

Mathematics
2 answers:
Ilya [14]3 years ago
6 0

Answer:

48

Step-by-step explanation:

There are 40 trials, 16 out of those 40 trials resulted in two heads and one tail, which is what we are trying to find out of 120..

To do that, find 16/40 which gives you 0.4%

Next multiply 0.4% by 120 and you will get 48.

Hope this helped!

mr_godi [17]3 years ago
5 0

Answer:

Step-by-step explanation:

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I don’t like to beg but I guess I’m in need..
djverab [1.8K]

Answer:

-4 < n ≤ 5

Step-by-step explanation:

Since the left inequality is an open circle and going to the right, the sign will be >

Since the right inequality sign is a closed circle and is going left, the sign would be ≤

The open circle ends at -4 so, n > -4

The closed circle ends at 5 so, n ≤ 5

You combine them and it looks like this:

-4 < n ≤ 5

6 0
3 years ago
Y=-4x-41 that passes through (-2,7)
dalvyx [7]

Answer:

Parallel: y=-4x-1

Perpendicular: y=-4x+13/2

Step-by-step explanation:

For the equation y=-4x-41, the slope is -4. Writing a line related to this equation has two options:

  • If the line will be parallel to it then this is the slope of the new line as well. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form.

(y-7)=-4(x--2)


y-7=-4x-8


y=-4x-1

  • If the line will be perpendicular to it then the slope is the negative reciprocal of the previous slope. It is 1/4.

(y-7)=1/4(x--2)


y-7=1/4x-1/2


y=-4x+13/2


4 0
3 years ago
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The son is 20 years younger than the father, and 5 years ago he was 5 times younger than him. How old is each of them?
Hatshy [7]

Answer:

wdym

Step-by-step explanation:

8 0
3 years ago
Two ratios that are equvalent to 27:9
Alex787 [66]

Answer:

Step-by-step explanation:

hello :

hello :

1) divid by 3 :   27:9= 9/3

2) 9/3 = 3/1

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3 years ago
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Is this a direct variation? for #1
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No its not because it dont go up by a constant rate of change
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