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romanna [79]
3 years ago
11

Look at the following numbers:

Mathematics
2 answers:
laiz [17]3 years ago
4 0
The answer is -4, 4.
Because -4 + 4 will become 0.



mr_godi [17]3 years ago
3 0

Answer:

−4, 4

Step-by-step explanation:

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Ostrovityanka [42]

Answer:

31

Step-by-step explanation:

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3 years ago
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How can I find the difference of the median and mode
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2 years ago
7) Write as a numeral:<br> 40,000 + 7,000 + 600 + 40 + 3
Diano4ka-milaya [45]

Answer:

47,643

Step-by-step explanation:

This question is basically asking you to add up all of these numbers together and present the end result.

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3) 47,000 + 643 = 47,643.

5 0
3 years ago
The sum of three numbers in <br> g.p. is 21 and the sum of their squares is 189. find the numbers.
sashaice [31]
Let the three gp be a, ar and ar^2
a + ar + ar^2 = 21 => a(1 + r + r^2) = 21 . . . (1)
a^2 + a^2r^2 + a^2r^4 = 189 => a^2(1 + r^2 + r^4) = 189 . . . (2)
squaring (1) gives
a^2(1 + r + r^2)^2 = 441 . . . (3)
(3) ÷ (2) => (1 + r + r^2)^2 / (1 + r^2 + r^4) = 441/189 = 7/3
3(1 + r + r^2)^2 = 7(1 + r^2 + r^4)
3(r^4 + 2r^3 + 3r^2 + 2r + 1) = 7(1 + r^2 + r^4)
3r^4 + 6r^3 + 9r^2 + 6r + 3 = 7 + 7r^2 + 7r^4
4r^4 - 6r^3 - 2r^2 - 6r + 4 = 0
r = 1/2 or r = 2
From (1), a = 21/(1 + r + r^2)
When r = 2:
a = 21/(1 + 2 + 4) = 21/7 = 3
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3 0
3 years ago
First correct answer will get Brainliest, 30 mins to answer! 25 points
MariettaO [177]

Answer:

I'm assuming it would be 3 hours

Step-by-step explanation:

It would be 3 hours because after three hours, the candle that can only burn for 3 hours will have burned out. This leaves the candles that can burn for 4 and 5 hours. I guess if you want to get really specific you could say 3 hours and 59 minutes but I'm not totally sure how your teacher wants the answer

6 0
2 years ago
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