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2 years ago

If the shadow of a tree is 14 m long and the shadow of a person who is 1.8 m tall is 4 m long, how tall is the tree?

2 answers:

6 0

A cannot be used to solve the probelm. as it dived 14 by 1.8. one of them is about how tall whereas the other is talking about length

MrRa [10]2 years ago

4 0

Answer: $\frac{x}{14}=\frac{1.8}{4}$

Step-by-step explanation:

Let 'x' be the height of tree.

The length of shadow of a tree = 14 m

The length of shadow of a person =4 m

The height of person = 1.8 m

Since both man and tree are standing vertical to the ground.

Assume the formation of shadow is happening at the same time then the angle that the sun hits the earth making shadows of both person and tree will be equal.

By direct proportion , we have

$\frac{\text{height of tree}}{\text{length of shadow of tree }}=\frac{\text{height of person}}{\text{length of shadow of person}}\\\\\Rightarrow\frac{x}{14}=\frac{1.8}{4}$

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katrin2010 [14]

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2 years ago

Five whole numbers are written in order

xenn [34]

Answer:

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Step-by-step explanation:

Given : Five whole numbers are written in order 4 6 x y 10 , the mean and median of the five numbers are the same.

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Solution :

Observations 4, 6, x, y, 10.

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5 0

3 years ago

Read 2 more answers

I NEED ALOT OF HELP SOMEONE!

DedPeter [7]

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2 years ago

Find the inverse of f(x)= -x + 3

inna [77]

Let g the inverse function of f.

The most important property of g and f being inverses of each other, is that

g(f(x))=x, also f(g(x))=x

so, what one function 'does' to x, the other 'undoes' it.

Thus, we have:

f(g(x))=x and alos f(g(x))= -g(x)+3, from the rule

thus :

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Answer: the inverse of f is g, such that g(x)=-x+3

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2 years ago

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lara [203]

Answer:

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