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4 years ago

5

Alma en peso ajugar ala ora que marca el reloj qué eran las 3 :45pm y terminó alas 5pm cuánto tiempo Jugo alma Alma empezó a jug

ar a la hora que marca el reloj que eran las 3:45 pm y termino a las 5 pm cuánto tiempo jugó alma

1 answer:

anzhelika [568]4 years ago

4 0

Answer:

01:55:55

Step-by-step explanation:

1 horas 55 minutos 55 segundos

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63.09 ÷ .00008<br><br>No rush on this, but if you know please respond, it will be appreciated.

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3 years ago

Discuss three contributing factors that led to the human violations of human trafficking

kenny6666 [7]

Answer:

Three contributing factors that led to human trafficking

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3 years ago

A model rocket is launched with an initial velocity of 240 ft/s. The height, h, in feet, of the rocket t seconds after the launc

Setler [38]

Answer:

About 1.85 seconds and 13.15 seconds.

Step-by-step explanation:

The height (in feet) of the rocket <em>t</em> seconds after launch is given by the equation:

$h = -16t^2 + 240 t$

And we want to determine how many seconds after launch will be rocket be 390 feet above the ground.

Thus, let <em>h</em> = 390 and solve for <em>t: </em>

<em /> $390 = -16t^2 +240t$ <em />

Isolate:

$-16t^2 + 240 t - 390 = 0$

Simplify:

$8t^2 - 120t + 195 = 0$

We can use the quadratic formula:

$\displaystyle x = \frac{-b\pm\sqrt{b^2 -4ac}}{2a}$

In this case, <em>a</em> = 8, <em>b</em> = -120, and <em>c</em> = 195. Hence:

$\displaystyle t = \frac{-(-120)\pm \sqrt{(-120)^2 - 4(8)(195)}}{2(8)}$

Evaluate:

$\displaystyle t = \frac{120\pm\sqrt{8160}}{16}$

Simplify:

$\displaystyle t = \frac{120\pm4\sqrt{510}}{16} = \frac{30\pm\sqrt{510}}{4}$

Thus, our two solutions are:

$\displaystyle t = \frac{30+ \sqrt{510}}{4} \approx 13.15 \text{ or } t = \frac{30-\sqrt{510}}{4} \approx 1.85$

Hence, the rocket will be 390 feet above the ground after about 1.85 seconds and again after about 13.15 seconds.

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3 years ago

Find the rate as a ratio of distance to time 369 km , 3 sec simplify answer

Nuetrik [128]

Rate or velocity is always distance divided by time

369 km / 3 sec =
123 kilometers per second

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3 years ago

I need some help. Please

Ilya [14]

Are you able to ask your teacher?

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3 years ago