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san4es73 [151]
3 years ago
7

Can someone please help me with this?

Mathematics
1 answer:
Arada [10]3 years ago
4 0

Answer:

x=14

Step-by-step explanation:

Similar shapes have proportional corresponding sides. So,

\dfrac{AB}{PQ}=\dfrac{BC}{QR}=\dfrac{CD}{RS}=\dfrac{DE}{ST}=\dfrac{EA}{TP}

Substitute all lengths:

\dfrac{4}{28}=\dfrac{3}{21}=\dfrac{5}{35}=\dfrac{3}{21}=\dfrac{2}{x}

Therefore,

\dfrac{2}{x}=\dfrac{1}{7}\\ \\x=14

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8. A cable car travels 2236 m to climb a mountain that is 1000 m high. It then travels 1414 m to descend 1000 m on the other sid
frutty [35]

Answer:

3000 m

Step-by-step explanation:

Using Pythagoras theorem

2236^2=1000^2+|AB|^2\\|AB|^2=2236^2-1000^2\\|AB|^2=3999696\\|AB|=\sqrt{3999696} \\=1999.9

Similarly

1414^2=1000^2+|BC|^2\\|BC|^2=1414^2-1000^2\\|BC|^2=999696\\|BC|=\sqrt{999696} \\=999.7m

Length of the Tunnel = |AB|+|BC|

=1999.9+999.7

=2999.6

=3000 m

4 0
3 years ago
Record sales are increasing by 5% each year. If 800,000 records were sold this year, what will annual sales be in 3 years?
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Answer:

120000

Step-by-step explanation:

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2 years ago
Will give brainliest
Lisa [10]

Answer:

First Gardener.

Step-by-step explanation:

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8 0
3 years ago
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Perimeter of a triangle with side length of 13.9in,10.4,8.5in
AlladinOne [14]

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3 years ago
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Simplify -2.3f+0.9f-14-4
Setler [38]

Answer:

The Answer would be 1.4f-18

Step-by-step explanation:

-2.3f+0.9f-14-4

then you do

-1.4f-14-4

Then u would get 1.4f-18.

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3 years ago
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