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help_people
 one year ago
A firecracker shoots up from a hill 150 feet high, with an initial speed of 110 feet per second. Using the formula H(t) = −16t2 + vt + s, approximately how long will it take the firecracker to hit the ground?
Eight seconds
Nine seconds
10 seconds
11 seconds
help_people
 one year ago
A firecracker shoots up from a hill 150 feet high, with an initial speed of 110 feet per second. Using the formula H(t) = −16t2 + vt + s, approximately how long will it take the firecracker to hit the ground? Eight seconds Nine seconds 10 seconds 11 seconds

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help_people
 one year ago
Best ResponseYou've already chosen the best response.0@LiveLaughDie @Nnesha @pooja195

help_people
 one year ago
Best ResponseYou've already chosen the best response.0im not sure @sohailiftikhar

sohailiftikhar
 one year ago
Best ResponseYou've already chosen the best response.1it should be some constant value like 5,3 etc u checked the statement clearly ?

sohailiftikhar
 one year ago
Best ResponseYou've already chosen the best response.1take is 5 ..now out height H=0 to find the time 0=16t^2+vt+5

sohailiftikhar
 one year ago
Best ResponseYou've already chosen the best response.1now 16t^2vt=5 put value of v from given data v=110fet/sec 16t^2110t=5 divide whole equation with 16 to get simplest form

help_people
 one year ago
Best ResponseYou've already chosen the best response.016t^2=5+110 16T^2=115 is tis correct?

sohailiftikhar
 one year ago
Best ResponseYou've already chosen the best response.1no where is the t with 110 ?

help_people
 one year ago
Best ResponseYou've already chosen the best response.0? could you just show me for my understudying @sohailiftikhar

sohailiftikhar
 one year ago
Best ResponseYou've already chosen the best response.1just find the value of t from the equation which i gave you ignor negative value and get +ve value that will be the answer

sohailiftikhar
 one year ago
Best ResponseYou've already chosen the best response.1did u do your work correctly ? what two values you have got ? for t

help_people
 one year ago
Best ResponseYou've already chosen the best response.0there ya goooo @sohailiftikhar

sohailiftikhar
 one year ago
Best ResponseYou've already chosen the best response.1ok it's correct

help_people
 one year ago
Best ResponseYou've already chosen the best response.0ok I'm still not sue what the answer is :/ @sohailiftikhar

sohailiftikhar
 one year ago
Best ResponseYou've already chosen the best response.1lol we are not sure about s which we taken as 5 ..so take it easy it's 2 sec

help_people
 one year ago
Best ResponseYou've already chosen the best response.0that not one of the answers :( @sohailiftikhar

sohailiftikhar
 one year ago
Best ResponseYou've already chosen the best response.1so what is answer ?O.o

help_people
 one year ago
Best ResponseYou've already chosen the best response.010? @sohailiftikhar

sohailiftikhar
 one year ago
Best ResponseYou've already chosen the best response.1lol what ? no it can be possible it only can 2 or near it your answer is correct i'm sure ..from where u get this huh ?

help_people
 one year ago
Best ResponseYou've already chosen the best response.0here are the options: Eight seconds Nine seconds 10 seconds 11 seconds

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0setup the equation when it hits the ground h(t)=0 n v=110 and s=150 now plug in the numbers and solve the qudratic equation

help_people
 one year ago
Best ResponseYou've already chosen the best response.0so im solving for s?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0no solve for t they already gave you v and s value

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0\(\color{blue}{\text{Originally Posted by}}\) @Nnesha setup the equation when it hits the ground h(t)=0 n v=110 and s=150 now plug in the numbers and solve the qudratic equation \(\color{blue}{\text{End of Quote}}\) read this

help_people
 one year ago
Best ResponseYou've already chosen the best response.0ook so what would the formula be to solve for t ?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0\[\huge\rm \frac{ b \pm \sqrt{b^24ac} }{ 2a }\] quadratic formula

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0a , b ,c values are \[\huge\rm Ax^2+Bx+C=0\] A= leading coefficient b=middle term c= constant term
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