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tensa zangetsu [6.8K]

3 years ago

6

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

2 answers:

pickupchik [31]3 years ago

7 0

Substituting the value of X in each of the equations.The best answer would be the equation satisfying both of the sides.
Therefore,
Substituting the values in the second equation gives the best answer.
8(1.2)^2 + 34 = 45.52 centimeters

lina2011 [118]3 years ago

4 0

The correct answer is the second option.

B) 8x2 + 34; 45.52 centimeters

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Consider the following.x = t − 2 sin(t), y = 1 − 2 cos(t), 0 ≤ t ≤ 8πSet up an integral that represents the length of the curve.

sweet [91]

The length of the parametric curve (call it <em>C </em>) is given by

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We have

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$y=1-2\cos t\implies\dfrac{\mathrm dy}{\mathrm dt}=2\sin t$

Now,

$\left(\frac{\mathrm dx}{\mathrm dt}\right)^2+\left(\frac{\mathrm dy}{\mathrm dt}\right)^2=5-4\cos t$

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4 years ago

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Step-by-step explanation:

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