3 years ago

A phone company charges a base fee of $25.00 per

Mathematics

1 answer:

iogann1982 [59]3 years ago

8 0

Answer:

c-25/ m

hope that helps

Step-by-step explanation:

Algebreic manipulation, watch Khan acadmy.

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guapka [62]

The answer is 2.11.
For negtives i always subtract the numbers: 51.64-46.09
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tigry1 [53]

Answer:

2.5 second

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The equation is missing in the question.

The equation is, $h=-8t^2+40t$ , where 'h' is the height and 't' is time measured in second.

Now we know to reach its maximum height, h in t seconds, the derivative of h with respect to time t is given by :

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Now the differentiating the equation with respect to time t, we get

$\frac{dh}{dt}=\frac{d}{dt}(-8t^2+40t)$

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For maximum height, $\frac{dh}{dt} =0$

So, $-16t+40=0$

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$\Rightarrow t=\frac{40}{16}$

$\Rightarrrow t = 2.5$

Therefore, the ball takes 2.5 seconds time to reach the maximum height.

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andrey2020 [161]

Answer:

The slope of the line is zero

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Step-by-step explanation:

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