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abalth2154
28.10.2019 •
Mathematics
Awater balloon is 5 feet above the ground when sally launches it into the air. use the quadratic equation 0 = -t2 + 4t + 5 to find how much time, t, it takes for the water balloon to reach the ground.
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Ответ:
2-sqrt14/2, 2+sqrt13/2.
Step-by-step explanation:
What you do is you have to do the quadratic equation like it says in the problem.
x= −b± sqrtb^2 −4ac /2a .
a=-2, b=4, c=5.
x=-4±sqrt(4)^2-4(-2)(5)/2(-2).
x=-4±sqrt16+40/-4.
x=-4±2sqrt14/-2.
2-sqrt14/2, 2+sqrt13/2. is your answer once you have done everything.
Ответ:
answer:
i think the answer is
1.create another line that intersects the segment.
step-by-step explanation:
this is because, when ever everyone writes when they want to do another part they draw a line threw the middle of the page and write under it.
everyone might not do that, but most people i know do.
for sharing, i hope i was .