3 years ago

Need help on this being timed

Mathematics

2 answers:

Aliun [14]3 years ago

6 0

Answer:I belive it would be 15 (sorry if it’s wrong)

Step-by-step explanation: I dived 7,200 by 24 and 20 That’s where I got 15 from.

Hope this helps!! :-)

sesenic [268]3 years ago

5 0

What’s 9 plus 10 that equals 21

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Alenkinab [10]

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Step-by-step explanation:

3. 14 x 7^2= 153. 86

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3 years ago

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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

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

So, $-16t+40=0$

$\Rightarrow 16t=40$

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

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

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3 years ago

What is 12 percent of 120?

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12% of 120 is 14.4

Change the percentage into a decimal by dividing over 100:

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3 years ago

(7 x 10^−12)(4 x 10^5) in scientific notation

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4 years ago

Help with solving equation: <br> -3x^4 + x^3-6x^2+15x-3. Divided by 3x

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