Find the perminter of 9.58m 11m 15m and 9m

Mathematics

1 answer:

alukav5142 [94]2 years ago

8 0

Answer:

44.58m

Step-by-step explanation:

9.58+11+15+9 (Perimeter is adding all the sides around)

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It takes 4.3 seconds for the rocket to return to earth.

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$0=-9.8t^2+v_0t+h_0$
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We will use the quadratic formula to solve this. The quadratic formula is:
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Plugging in our information we have:
$t=\frac{-42\pm \sqrt{42^2-4(-9.8)(0)}}{2(-9.8)}
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\\
\\=\frac{-42\pm \sqrt{1764}}{-19.6}
\\
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\\
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x=0 is when the rocket is launched; x=4.3 is when the rocket lands.

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