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atroni [7]
3 years ago
6

Negative 9 minus negative 10

Mathematics
2 answers:
antoniya [11.8K]3 years ago
4 0
1 is your answer -+- is a positive
kirill115 [55]3 years ago
3 0
You have -9 -(-10). So when you have a subtraction symbol next to a negative, just like this problem. You will then have a positive 10.

So...
Negative and a Positive make a [Negative]
Positive and a Negative make a [Negative]
Positive and a Positive make a [Positive]
Negative Negative make a [Positive]

Then you add -9 and 10. You go closer to the 0. Then you have 1.
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Answer:

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Step-by-step explanation:

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Elena is a hairdresser, and she usually charges 35$ for a standard haircut. If a customer leaves a 20% tip for a standard haircu
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Please help with this
Arturiano [62]

The missing side of the triangles are 5, 16.92, 7 and 5 respectively.

Step-by-step explanation:

  • Step 1: Use the Pythagoras Theorem to find the missing sides.

a² + b² = c²

In the first triangle, a = 3, b = 4.

c² = 3² + 4² = 9 + 16 = 25

⇒ c = 5

∴ Missing side is 5

In the second triangle, a = 15, b = 8

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Missing side is 16.92

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Missing side is 7

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b² = c² - a²

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⇒ b = 5

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7 0
3 years ago
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