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Simora [160]
3 years ago
11

4. Use the diagram below to answer the question

Mathematics
1 answer:
ludmilkaskok [199]3 years ago
4 0

Answer:

≈ 397 m

Step-by-step explanation:

Using Pythagoras' identity on the right triangle

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

Let h represent the height of the balloon above ground, then

h² + 50² = 400², that is

h² + 2500 = 160000 ( subtract 2500 from both sides )

h² = 157500 ( take the square root of both sides )

h ≈ 397 m ( to the nearest metre )

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Answer:

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Step-by-step explanation:

8572x7= 60004...

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► Find the percent change and tell whether it is a percent increase or a
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Answer:

1 Original amount: 20

End amount: 15

<h3>(20 - 15)/20 x 100 = (5/20) x 100 = 25% decrease</h3>

2 Original amount: 30

End amount: 45

<h3>(45 - 30)/30 x 100 = (15/30) x 100 = 50% increase </h3>

3 Original amount: 625

End amount: 550

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4 Original amount: 320

End amount: 112

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5 Original amount: 165

End amount: 222.75

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