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Maslowich
3 years ago
7

PLS HELP SHOW ALL YOUR WORKING OUT AND BRAINLIEST WILL BE AWARDED

Mathematics
2 answers:
Sergeu [11.5K]3 years ago
7 0
That would be a=5.97cm

i attached the pic of the solution.

hammer [34]3 years ago
4 0

Answer:

5.97 cm  to 3 significant figures.

Step-by-step explanation:

The diameter of the circle will be equal to the length of the diagonal of the square.

Area = 56 = πr^2

r^2 = 56 / π

r = √(56 / π) =  4.222 cm

So the diameter = 8.444 cm.

This  is  = diagonal of the square so, by The Pythagoras Theorem:

x^2 + x^2 = 8.444^2     where x  is the side of the square.

x^2 = (8.444)^2 / 2

x^2 = 35.651

x =  5.971 cm

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A particle moves on the hyperbola xy=18 for time t≥0 seconds. At a certain instant, y=6 and dydt=8. What is x that this instant?
professor190 [17]

Answer:

The value of x at this instant is 3.

Step-by-step explanation:

Let x\cdot y = 18, we get an additional equation by implicit differentiation:

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y\cdot \frac{dx}{dt}=-\frac{18}{y}\cdot \frac{dy}{dt}

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From (1) we determine the value of x at this instant:

x\cdot \frac{dy}{dt} = -y\cdot \frac{dx}{dt}

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3 years ago
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san4es73 [151]

Answer:

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Step-by-step explanation:

* 6(-2g - 1) = -(13g + 2)

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- Let us simplify each side and then solve the equation

∵ 6(-2g - 1) = (6)(-2g) - (6)(1)

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∴ The simplify of 6(-2g - 1) is -12g - 6 ⇒ (1)

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