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4 years ago

12÷(−6)????????????????????????????????????????????????????????

Mathematics

1 answer:

wlad13 [49]3 years ago

7 0

Answer:

-2

Step-by-step explanation:

First imagine that the negative is not there.

So the problem would be 12 divided by 6

Then divide.

You would get 2.

Next, add the negative sign in front of the 2.

Bam! You get the answer of -2.

Hope this helped!

~Oreo

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Vladimir79 [104]

Answer:

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Step-by-step explanation:

The velocity of the second particle Q moving along the x-axis is :

$V_{Q}(t)=45\sqrt{t} cos(0.063 \ t^2)$

So ; the objective here is to find the time interval and the distance traveled by particle Q during the time interval.

We are also to that :

$V_Q(t) \geq 60$ between $0 \leq t \leq 4$

The schematic free body graphical representation of the above illustration was attached in the file below and the point when $V_Q(t) \geq 60$ is at 4 is obtained in the parabolic curve.

So, $V_Q(t) \geq 60$ is at $1.866 \leq t \leq 3.519$

Taking the integral of the time interval in order to determine the distance; we have:

distance = $\int\limits^{3.519}_{1.866} {V_Q(t)} \, dt$

= $\int\limits^{3.519}_{1.866} {45\sqrt{t} cos(0.063 \ t^2)} \, dt$

= By using the Scientific calculator notation;

distance = 106.109 m

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victus00 [196]

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Step-by-step explanation:

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