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anonymous
 one year ago
The function h= is used to model fireworks being launched (or projected) into the air. The function models the height h after x seconds.
a) How long will it take the fireworks to reach their greatest height?
b) How high will the fireworks be their greatest height?
anonymous
 one year ago
The function h= is used to model fireworks being launched (or projected) into the air. The function models the height h after x seconds. a) How long will it take the fireworks to reach their greatest height? b) How high will the fireworks be their greatest height?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[h=16x ^{2}+160x+4\]

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1to find the max height you need to take derivative

TrojanPoem
 one year ago
Best ResponseYou've already chosen the best response.0Find maxima using derivative as xapproaches said then you will get the time put it in the main function and you will get the height.

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1\(\frac{dh}{dx}=32x+160\) set this equal 0 to find the time it takes to reach maximum

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0hello mam, i would like to know whether u are used to taking derivatives..?

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1you can actually discard calculus and do it with basic tools

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1that's just a parabola! and you learned that the prabolas has max at \(\left (\frac{b}{2a}, h(\frac{b}{2a})\right )\)

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1when a<0 that is

xapproachesinfinity
 one year ago
Best ResponseYou've already chosen the best response.1a being the leading coefficient!
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