3 years ago

Please helppppppppppppppppppp :) .

Mathematics

1 answer:

pickupchik [31]3 years ago

7 0

Answer and Step-by-step explanation:

I think this is the correct answer (in picture):

This is because you can either get Heads or Tails, so once you flip it once, you just flip it again and you will get either heads or tails.

#teamtrees #PAW (Plant And Water)

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Morgarella [4.7K]

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3 years ago

In the expansion of (ax+1)^7<br> the fifth term is 945x^3<br> Find the value of a.

Advocard [28]

Answer:

a = 3

Step-by-step explanation:

First start writing out the binomial expansion of $(ax + 1)^7$

$[1^7] + [7C1 * 1^6 *(ax)] + [7C2*1^5*(ax)^2]+[7C3*1^4*(ax)^3]$

as you can see from this, the last bracket will produce our $x^3$ term

$7C3*1^4*a^3x^3 \\35a^3x^3\\35a^3 = 945\\a^3 = 27\\a = 3$

Hope this helps, let me know if you have any questions :)

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3 years ago

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Nataliya [291]

Answer:

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Step-by-step explanation:

-y = 17

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iogann1982 [59]

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2 years ago

Dialation of 1/4 about the origin

Crank

Answer:

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Step-by-step explanation:

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