Which number is not like the others? 0246, 4678, 7123, 3456, 2456, 8123

2 answers:

7 0

0246 because it is a 3 digit number, if you see its a 0 at the front, so it is not a true 4 digit number like the rest, if that is the kid f answer your looking for

Dennis_Churaev [7]3 years ago

6 0

0246 is unlike the others, You can't have a 0 in front of a large number like that without the use of a decimal

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A gymnast dismounts the uneven parallel bars. Her height, h, depends on the time, t, that she is in the air h = −162 + 24t + 16.

dimulka [17.4K]

That is when h=0
so assuming yo meant
h(t)=-16t²+24t+16
solve for t such that h(t)=0
because when height=0, the gymnast hits the ground

so
0=-16t²+24t+16
using math (imma complete the square
0=-16(t²-3/2t)+16
0=-16(t²-3/2t+9/16-9/16)+16
0=-16((t-3/4)²-9/16)+16
0=-16(t-3/4)²+9+16
0=-16(t-3/4)²+25
-25=-16(t-3/4)²
25/16=(t-3/4)²
sqrt both sides
+/-5/4=t-3/4
3/4+/-5/4=t
if we do plus (because minus would give us negative height)
8/4=t
2=t
it takes 2 seconds

5 0

3 years ago

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lara [203]

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