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Salsk061 [2.6K]
2 years ago
9

City park is a right triangle with a base of 40 yards and a height of 25 yards on a map the park has a base of 40 inches and a h

eight of 25 inches what is the ratio of the area of the triangle on the map to the area of city Park
Mathematics
1 answer:
Anettt [7]2 years ago
6 0
.................................
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Find the area of the shape. Either enter an exact answer in terms of \piπpi or use 3.143.143, point, 14 for \piπpi and enter you
Len [333]

Answer:

Area of given figure = 37.68 unit²

Step-by-step explanation:

Given:

Radius of given shape = 4 unit

Angle = 270°

Value of π = 3.14

Find:

Area of given figure

Computation:

Area of given figure = [Ф/360][πr²]

Area of given figure = [270/360][(3.14)(4)²]

Area of given figure = [0.75][(3.14)16]

Area of given figure = [0.75][50.24]

Area of given figure = 37.68 unit²

6 0
2 years ago
When Carson runs the 400 meter dash, his finishing times are normally distributed with a mean of 65 seconds and a standard devia
just olya [345]

Given Information:  

Mean time to finish 400 meter dash  = μ = 65 seconds

Standard deviation to finish 400 meter dash = σ = 2.5 seconds  

Confidence level = 95%

Required Information:  

95% confidence interval = ?

Answer:  

 CI = 60 \: to \: 70 \: seconds

Step-by-step explanation:  

In the normal distribution, the empirical rule states approximately 68% of all the data lie within 1 standard deviation from the mean, approximately 95% of all the data lie within 2 standard deviations from the mean and approximately 99.7% of all the data lie within 3 standard deviations from the mean.

The confidence interval for 95% confidence limit is given by

 CI = \mu \pm 2\sigma

Since approximately 95% of all the data lie within 2 standard deviations from the mean. μ is the mean time Carson takes to finish 400 meter dash and σ is the standard deviation.

 CI = 65 \pm 2(2.5)

 CI = 65 \pm 5

 CI = 65 - 5 \: to \: 65 + 5

CI = 60 \: to \: 70 \: seconds

Therefore, the 95% confidence interval is between 60 to 70 seconds

What does it mean?  

It means that we are 95% confident that the Carson's mean to finish 400 meter dash is within the interval of (60, 70).

4 0
2 years ago
Which set of data has the strongest linear association?
Inga [223]
The first one because it goes through pretty much all the points on the graph.
7 0
3 years ago
Please help :(. i don’t know how to do this
mafiozo [28]
Hey you can get this app that read the maths questions and gives u the answer straight away so u don’t need to wait for people to answer you
3 0
2 years ago
- 8 - Зу = 25<br> How do I do this
ra1l [238]
Add 8 to 25 which equals 33. then divide by -3 so y= -11
3 0
3 years ago
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