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dlinn [17]
3 years ago
15

Do i have to check all 3 sums for triangle inequality theorem

Mathematics
1 answer:
WARRIOR [948]3 years ago
6 0
It’s better if you do but now you don’t have to.
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dog eats 8 ounces of dog food each day Ronald bought a 24 pound bag of dog food how many eight servings are in a 24 pound bag of
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48

Step-by-step explanation:

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8 0
3 years ago
A construction worker drops a hammer from a height of 25 m.
Snezhnost [94]

Answer:

Time at which the hammer reaches the ground is 2.3 seconds.

Step-by-step explanation:

We are given the formula as, h(t)=-4.9t^2+v_{o}+h_{o}.

It is known that, when height i.e. h_{o}=25 meter, then velocity v_{o}=0 m/sec.

So, we get the formula as, h(t)=-4.9t^2+25.

Now, when the hammer hits the ground, the height h_{o}=0 meter.

Thus, we have,

h(t)=-4.9t^2+25

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⇒ 4.9t^2=25

⇒ t^2=5.1

i.e. t= ±2.3 sec

Since, time cannot be negative.

So, t= 2.3 sec

Hence, the time at which the hammer reaches the ground is 2.3 seconds.

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