2 years ago

Solve x2 + 2x + 6 = 0 using the quadratic formula.

Mathematics

1 answer:

Eduardwww [97]2 years ago

6 0

No solution for the quadratic equation because of the √-20

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We know that is speed is 0.4 pages per 0.5 minutes. This is 0.8 pages per 1 minute. If we divide 1/0.8, we get 1.25 or 1 minute 15 seconds.

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Answer:

Equation of movement y(t)

$y(t)=sin(10t-\pi/2)$

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If there is no friction, the amplitude will be the length it was streched from the equilibrium. In this case, this value is 1 inch

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The period depends on the mass and the spring constant.

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The model y(t) for the movement of the mass-spring system is

$y(t)=A\cdot sin(\omega t +\phi)\\\\A=1\\\\\omega=\sqrt{k/m} =\sqrt{100/1}=10\\\\y(0)=Asin(\phi)=-A\\\\ \phi=arcsin(-1)=-1.571=-\pi/2\\\\\\y(t)=sin(10t-\pi/2)$

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Answer: her increase is 1.245 dollars an hour

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Step-by-step explanation:

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