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Gre4nikov [31]
3 years ago
15

Fill in the chart on paper than list the coefficient of x^2 term.

Mathematics
1 answer:
slamgirl [31]3 years ago
8 0
I am assuming you're doing a Punnet square, so you multiply each one. So on the top left box, it is -45x^2, the top right is 9x, bottom left is 35x, and bottom right is -7. 
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2 years ago
A 6m ladder leans against a wall. The bottom of the ladder is 1.3m from the wall at time =0sec and slides away from the wall at
icang [17]

Answer:

- 0.100

Step-by-step explanation:

Length of the ladder,  H = 6 m

Distance at the bottom from the wall, B = 1.3 m

Let the distance of top of the ladder from the bottom at the wall is P

Thus,

from  Pythagoras theorem,

B² + P² = H²    .

or

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at B = 1.3 m

1.3² + P² = 6²

or

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or

P² = 34.31

or

P = 5.857

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differentiating (1)

2B(\frac{dB}{dt})+2P(\frac{dP}{dt})=0

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at 2 seconds

B = 1.3 + 0.6 = 1.9 m

therefore,

1.9² + P² = 6²

or

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on substituting the given values,

2(1.9)(0.3) + 2(5.69) × (\frac{dP}{dt}) = 0

or

1.14 + 11.38 × (\frac{dP}{dt}) = 0

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or

(\frac{dP}{dt}) = - 0.100

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