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zaharov [31]
3 years ago
8

Find the area of the shape shown below 4 2 6 2 2 2

Mathematics
1 answer:
Vinil7 [7]3 years ago
3 0

Answer:

32 squared units

Step-by-step explanation:

The composite given in the figure consist of 3 triangles and 1 square shape.

To calculate the area of the composite shape, let's calculate area of each shape and then add all together.

==>Area of the square (Q): s²

s = 2

Area = 2² = 4 squared units

==>Area of biggest triangle (B): ½*b*h

b = 2+2+6 = 10

h = 4

Area = ½*10*4 = 5*4 = 20 squared units

==>Area of medium triangle (M): ½*b*h

b = 2

h = 6

Area = ½*2*6 = 6 squared units

==>Area of smallest triangle (S): ½*b*h

b = 2

h = 2

Area = ½*2*2 = 4/2 = 2 squared units

==>Area of composite shape = Q+B+M+S = 4+20+6+2 = 32 squared units

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3 years ago
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2 years ago
A recent survey of 128 high school students indicated the following information about release times from school.
Delicious77 [7]

Answer:

A) Interval estimate for those that want to get out earlier = (35%) ± (4%) = (31%, 39%)

Interval estimate for those that want to get out later = (39%) ± (4%) = (35%, 43%)

B) The group that wants to get out of school earlier can win after all the votes are counted if their true population proportion takes on a value that is higher than the closest true population proportion (for the group that wants to get out of school later)

That is, in the (31%, 39%) and (35%, 43%) obtained in (a), a range of (35.1%, 39%) and (35%, 38.9%) show how possible that the group that wants to get out of school earlier can win after all the votes are counted.

Step-by-step explanation:

The Interval estimate for the proportion is basically an interval of range of values where the true population proportion can be found with a certain level of confidence.

Mathematically,

Interval estimate = (Sample proportion) ± (Margin of error)

Margin of Error is the width of the confidence interval about the proportion.

a) Find the interval estimates

i) for those that want to get out earlier and

ii) those that want to get out later.

i) Sample proportion of those that want to get out earlier = 35%

Margin of Error = 4%

Interval estimate for those that want to get out earlier = (35%) ± (4%) = (31%, 39%)

ii) Sample proportion of those that want to get out later = 39%

Margin of Error = 4%

Interval estimate for those that want to get out later = (39%) ± (4%) = (35%, 43%)

b) Explain how it would be possible for the group that wants to get out of school earlier to win after all the votes are counted.

Since the interval estimates represent the range of values that the true population proportion can take on for each group that prefer a particular option, the group that wants to get out of school earlier van have their proportion take on values between 31% and 39%. If their true population takes on a value that is highest (which is very possible from the interval estimate), and the group with the highest proportion in the sample, (the group that wants to get out of school later, whose true population proportion can take between 35% and 43%) has a true population proportion that is less than that of the group that wants to get out of school earlier, then, the group that wants to get out of school earlier can win after all the votes are counted.

Hope this Helps!!!

3 0
3 years ago
My bed is 3 inches by 2 2/3 inches by 1/3 inch.What is the volume of my bed
Gekata [30.6K]

Answer:

2 2/3

Step-by-step explanation:

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3*8/3=8

8*1/3= 8/3= 2 2/3

5 0
2 years ago
Read 2 more answers
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Answer:

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just look up circumference of a circle and you should be able to put the radius in the first thing that pops up :)

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2 years ago
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