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Minchanka [31]
3 years ago
7

Given that a = 2,5= 2 and C = -1 work out 2b – 3ac

Mathematics
1 answer:
poizon [28]3 years ago
6 0

Step-by-step explanation:

2b-3ac

=2×2-3×2×(-1)

= 4+6

=10

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What is 76,808 rounded to the nearest 100?
Neporo4naja [7]

Answer:

76,800

Step-by-step explanation:

This is because 808 is closer to 800

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The sum of three consecutive odd integers is 255 find the integers
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The slant height, l, of a cone with a surface area of 500π ft2 and a radius of 15 ft.
nataly862011 [7]
Surface area = πr(r + l)
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6 0
3 years ago
Andrew and Elena knew that after 28 days they would have 2^28 coins, but they wanted to find out how many coins that actually is
kiruha [24]

Both Andrew and Elena are wrong. The actual value of 2^28 equals 268,435,456.

Step-by-step explanation:

Elena was right when she said exponents mean repeated multiplication but she accidentally calculated the value of 28^2 instead of 2^28. 2^28 means that the number 2 should be multiplied with itself for 28 times.

2^2 means 2 multiplied by 2 equals 4. 2^3 means 2 multiplied by 2 and then multiplied by 2 again which equals 8. Similarly, if you multiply 2 with itself 28 times you will get a value of 268,435,456 (two hundred and sixty-eight million, four hundred and thirty-five thousand, four hundred and fifty-six). So Andrew and Elena will have 268,435,456 coins after 28 days.

5 0
4 years ago
How do you solve this?
IgorLugansk [536]
3. Simplify to the exponential form

(-2x^5)^4

(-2)^4 • (d^5)^4

16dx^20 is the answer
8 0
3 years ago
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