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Nataly [62]
2 years ago
8

2 balls are rolling towards each other from the opposite ends of a straight tube that is

Mathematics
2 answers:
suter [353]2 years ago
8 0

Answer:

6 seconds

Step-by-step explanation:

In second 1, the distance that separates them is  80 cm

Then, in second 2, it is an additional 76 cm which is 156

then 72, etc. etc.

From that, we can continue adding until we the total sum is 420.

80+76+72+68+64+60=420

That's 6 seconds

Not the most elegant solution but I think one of the simplest.

Step2247 [10]2 years ago
3 0
6 seconds!!!!!!!!!!!! that should be the answer
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3 years ago
Find the area of the circle. Leave your answer in terms of π.
jeka94

Answer:

254.47

Step-by-step explanation:

the area of a circle can be found using the formula

pi(radius)^2

in your problem, the radius is 9. Plug it into the equation

pi(9)^2

9^2 is 81

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pi is about 3.14

area is 254.47

If you need help, feel free to message me

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3 years ago
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Alexxx [7]
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AB = (-3,2) and (1,5)
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AB = 5
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CD = 7.071107...
DA or AD = 5
The height is AB, the first base is BC and the second base is CD. We can plug the values for these sides into the trapezoid area formula, which is A = base 1 + base 2 all over 2 times the height. Doing so gives us 37.5 units². Therefore, the answer to your query is 37.5 units². Hope this helps and have a nice day!
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hodyreva [135]

Answer:

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Step-by-step explanation:

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Answer:

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