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anonymous
 one year ago
3) How long does it take the apple to reach your friend?
(**HINT: The time would be the xcoordinate of the highest point.)
Double click on the space below to show your work.
h(t) = – 16t2 + 38.4t + 0.96
H= Height. T= Time (seconds).
I WILL FAN AND MEDAL FOR ANSWERS AND WORK.
anonymous
 one year ago
3) How long does it take the apple to reach your friend? (**HINT: The time would be the xcoordinate of the highest point.) Double click on the space below to show your work. h(t) = – 16t2 + 38.4t + 0.96 H= Height. T= Time (seconds). I WILL FAN AND MEDAL FOR ANSWERS AND WORK.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Set the equation = 0. Then use quadratic formula.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It is supposed to be h(t) = 16t^2 + 38.4t + 0.96

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok! Set the equation = 0.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\(\huge 16t^2+38.4t+0.96=0\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Do you know the quadratic formula?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Then it would be \[38\pm \sqrt{38.4^{2}4(16)(0.96)} / 2(16)\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The beginning is supposed to be 38.4 not just 38.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes! Now solve for t. :) And since it is time, your answer shouldn't be the negative one.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Let me know if you got an answer, so I may check if it's right. :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So then I get: \[38.4\pm \sqrt{1,536} / 32\] I'm confused on what to do after this step.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\(\huge \frac{38.4±\sqrt {1536}}{32}\) Frind the square root of 1536 first.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\(\huge \frac{38.4±16\sqrt {6}}{32}\rightarrow\) \(\huge \frac{38.4+16\sqrt {6}}{32} \) & \(\huge \frac{38.416\sqrt {6}}{32} \)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Should it be in radical form or could it be in decimal form?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So how do we get the answer from there? It should be in decimal form since we are trying to find how many seconds it takes the apple to reach your friend.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Great! Now get a calculator and solve for it. Notice that \(\sqrt{6} =2.45\).

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\(\huge \frac{38.4+16(2.45)}{32}\) &\(\huge \frac{38.416(2.45)}{32}\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Or should it be positive 0.02? @mathway

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You're supposed to get \(\huge \color{red}{ \text{TWO}}\) solutions. and \(0.02\) is one. And since it is negative, it can't be the time. So solve for the other one.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.02.4 seconds rounded.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you so much!!!
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