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bixtya [17]
4 years ago
5

The triangles are similar. If DE = 24, EF = 42, and AB = 8, find BC

Mathematics
1 answer:
Alik [6]4 years ago
3 0
If triangle abc is similar to def
That means all angles are the same and sides will be multiplied by some factor x. So AB(x)= DE
8x=24
Therefore x =3
Now BC=EF/x
BC=42/3
BC= 14
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nignag [31]

Answer:

We can now write this is a function of time in years leading to

f

(

x

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=

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(

.94

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x

f

(

5

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≈

147

Explanation:

Firs you should consider that if its exponential then it has some form similar to

3

x

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x

) that we are trying to find out. Mathematically we can say it has the form

a

x

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a

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Well it turns out that if you multiply some value over and over again it has this form. Example we multiply

2

⋅

2

⋅

2

⋅

2

=

2

4

. So if something doubled over time then this is what would happen.

Now the problem is that it will continue to decrease at the same rate leading to

a

⋅

(

.94

)

because only

94

%

of the population remains each year. After two years

a

⋅

(

.94

)

⋅

(

.94

)

. We can now write this is a function of time in years leading to

f

(

x

)

=

200

⋅

(

.94

)

x

f

(

5

)

≈

147

Step-by-step explanation:

8 0
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