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sertanlavr [38]
3 years ago
9

A doghouse is to be built in the shape of a right trapezoid, as shown below. What is the area of the doghouse?

Mathematics
2 answers:
Xelga [282]3 years ago
8 0
Here, Total area of Trapezoid = Area of square in it + Area of Triangle

Area of square = a² = 5² = 25 Ft²

Area of Triangle = 1/2 × b × h = 1/2 × 5 × 3 = 7.5

So, Total area = 25 + 7.5 = 32.5 Ft²

In short, Your Answer would be Option A

Hope this helps!
Iteru [2.4K]3 years ago
6 0
Find the area of the square first.
5x5=25
Now find the area of the triangle.
5x3=15
Since its a triangle we divide 15/2
15/2=7.5

25+7.5= 32.5

Please mark brainliest 3 more to rankup
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Step-by-step explanation:

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Find the perimeter of the shaded region. Round your answer to the nearest hundredth. Help me por favor
timurjin [86]

Answer:

19.15

Step-by-step explanation:

so find the circumference of the circle using c=2*pi*r it's like 18.849. then find the perimeter of the box so p=2l+2w and it's like 38. so subtract the circle circumference from 38 so 38-18.849=19.15

6 0
3 years ago
A recent Gallup poll found that 36% of U.S. teens aged from 13 to 17 years old have a computer with [(6)] Internet access in the
In-s [12.5K]

Answer:

Step-by-step explanation:

a) The population parameter is the population proportion.

b) Confidence interval is written as

Sample proportion ± margin of error

Margin of error = z × √pq/n

Where

z represents the z score corresponding to the confidence level

p = sample proportion. It also means probability of success

q = probability of failure

q = 1 - p

p = x/n

Where

n represents the number of samples

x represents the number of success

From the information given,

n = 1028

p = 36/100 = 0.36

q = 1 - 0.36 = 0.64

To determine the z score, we subtract the confidence level from 100% to get α

α = 1 - 0.99 = 0.1

α/2 = 0.01/2 = 0.005

This is the area in each tail. Since we want the area in the middle, it becomes

1 - 0.05 = 0.995

The z score corresponding to the area on the z table is 2.58. Thus, confidence level of 99% is 2.58

Therefore, the 99% confidence interval is

0.36 ± 2.58 × √(0.36)(0.64)/1028

The lower limit of the confidence interval is

0.36 - 0.039 = 0.321

The upper limit of the confidence interval is

0.36 + 0.039 = 0.399

Therefore, with 99% confidence interval, the proportion of U.S. teens aged from 13 to 17 years old that have a computer with Internet access in their rooms is between 0.321 and 0.399

c) for a margin of error of 1%, that is 1/100 = 0.01, then

0.01 = 2.58 × √(0.36)(0.64)/n

0.01/2.58 = √0.2304/n

0.00387596899 = √0.2304/n

Square both sides

0.00001502314 = 0.2304/n

n = 0.2304/0.00001502314

n = 15336

5 0
3 years ago
I need to know how to solve this
ahrayia [7]
Answer:

To find angle y you subtract the two angles form 180 degrees because it is a straight line. Then you subtract angle y and 72 from 180 because a triangle adds up to 180 degrees and you get angle x.

Hope this helps, ask if you have any more questions!
8 0
1 year ago
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