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2 years ago

If a 30-foot tree casts an 18-foot shadow, find the length of the shadow cast by a 27-foot tree.

Mathematics

1 answer:

ipn [44]2 years ago

8 0

Answer:

16.2 foot shadow

Step-by-step explanation:

Let the shadow cast by 27 foot tree be x.

Using ratio and proportions,

18 / 30 = x / 27

(18 x 27) / 30 = x

x = 486 / 30

x = 16.2

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Ratling [72]

Answer: point estimate = 3.88

Margin of error = 0.63

Step-by-step explanation:

Confidence interval is written in the form,

(Point estimate - margin of error, Point estimate + margin of error)

The sample mean, x is the point estimate for the population mean. Let m represent the margin of error. Since the confidence interval is given as (3.25 , 4.51), it means that

x - m = 3.25

x + m = 4.51

Adding both equations, it becomes

2x = 7.76

x = 7.76/2

x = 3.88

Substituting x = 3.88 into x + m = 4.51, it becomes

3.88 + m = 4.51

m = 4.51 - 3.88

m = 0.63

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3 years ago

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sergiy2304 [10]

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2 years ago

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qwelly [4]

Answer:

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Step-by-step explanation:

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3 years ago

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...............................................

olga55 [171]

Answer:

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3 years ago

If a 30​-foot tree casts an 18​-foot ​shadow, find the length of the shadow cast by a 27-foot tree.

If a 30-foot tree casts an 18-foot shadow, find the length of the shadow cast by a 27-foot tree.