2 years ago

I need help with this ?

Mathematics

1 answer:

NeX [460]2 years ago

7 0

Answer:

-2 ≤x ≤10

Step-by-step explanation:

the domain refers to the x

the x is in between -2 and 10

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Tom throws a ball into the air. The ball travels on a parabolic path represented by the equation , where represents the height o

tigry1 [53]

Answer:

2.5 second

Step-by-step explanation:

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 :

$\frac{dh}{dt} =0$

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

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

$\frac{dh}{dt}=-16t+40$

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

So, $-16t+40=0$

$\Rightarrow 16t=40$

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

$\Rightarrrow t = 2.5$

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

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2 years ago

Of the following options, what could be a possible first step in solving the equation 8x + 3 = 2x - 15

Basile [38]

The first step can be subtracting 2x from both sides leaving the equation with 6x + 3 = -15

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2 years ago

Plzzz help i need help quick the right answer gets a thanks, 5 stars, and a Brainly!

alexgriva [62]

Answer:

The absoloute value is 2

Step-by-step explanation:

absoloute value is the places away from 0. -2 is 2 spots away from 0.

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Find the slope of 5x-2y=-2

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<h2>Answer:</h2><h2>The slope is 5/2</h2><h2 /><h2>Hope this helps!!</h2>

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There are four white socks and six black socks in a drawer. What is the probability of selecting a white sock, not replacing it,

balu736 [363]

Answer:

1/3

Step-by-step explanation:

Think about it

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