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Alex17521 [72]
2 years ago
8

Help someone if you not sleep please

Mathematics
1 answer:
mart [117]2 years ago
8 0

Hello from MrBillDoesMath!

Answer:

+\- 10i

Discussion:

Fortunately, I can do this one in my sleep...... );


+\- sqrt(-100)  =

+\- 10 i                         where i = sqrt(-1)


Thank you,

MrB

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babunello [35]

Given:

The expressions are:

6+3

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To find:

The value of given expression by using integer tiles.

Solution:

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6+3

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6+3=9

Similarly,

6+(-4)

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When we cancel the positive and negative integer tiles, we get 2 positive integer tiles as shown in the below figure. So,

6+(-4)=2

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6+(-6)=0

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8 0
2 years ago
A log is 20 m long, correct to the nearest metre.
Marat540 [252]

Answer:

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Step-by-step explanation:

Since the log is 20 m long, correct to the nearest metre and has to be cut into fence posts which must be 90 cm long, correct  to the nearest 10 centimetres, there can be x fence posts 90 cm long.

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x × 0.9 m = 20 m

x = 20 m/0.9 m

x = 222.22

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So, the largest number of fence posts that can possibly be cut from the log is 222 fence posts.

4 0
3 years ago
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Wewaii [24]

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Answer:

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Step-by-step explanation:

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damaskus [11]

Answer:

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Step-by-step explanation:

8 0
2 years ago
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