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user100 [1]
3 years ago
6

How you could multiple 6×99 in your head?

Mathematics
2 answers:
Andrew [12]3 years ago
4 0
99 is 1 less than 100.
(100-1)×6

100×6=600
-1×6=-6

600-6=<span>594

Answer: 594</span>
NeTakaya3 years ago
4 0
Since 99=100-1,
we use the distribution property,
6(99)=6(100-1)=600-6 = 594

With minimum practice, the technique can be mastered in a short time.

For example, 15*998 = 15(1000-2) =15000-30=14970
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Can you help me please<br>Find the distance between the points (1,1) and (7,-7)
Vera_Pavlovna [14]

Answer:

10 units

Step-by-step explanation:

to find the distance between two points you will need to use the distance formula:

\sqrt{(x1-x2)^{2}+(y1 - y2)^{2}  }

the x1 refers to the x coordinate in the first bracket, the x2 refers to the x coordinate in the second bracket, etc.

insert the coordinates into the equation:

\sqrt{(1 - 7)^{2}+(1--7)^{2}  }

a double negative equals a positive

insert this equation into your calculator:

\sqrt{(1-7)^{2}+(1+7)^{2}  } = 10

∴ the distance between the points (1,1) and (7,-7) are 10 units

I hope this was helpful :-)

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2 years ago
What's the volume of a block of ice measuring 3 meters long, 1.5 meters wide, and 2 meters high?
abruzzese [7]

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Here, the volume is V = (3 m)(1.5 m)(2 m) = 9 m³

4 0
3 years ago
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What is the slope of the line passing through the points (1, –5) and (4, 1)?
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4 years ago
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