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ivanzaharov [21]
2 years ago
8

What is the reciprocal of 3?

Mathematics
1 answer:
chubhunter [2.5K]2 years ago
5 0
The reciprocal of 3 is 1/3.
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The function h(t) = -4.9t2 + h0 gives the height (h), in meters, of an object t seconds after it falls from an initial height (h
sveticcg [70]
It will hit the ground after 3.499 seconds.

To solve this you first have to find the value of h(0) in this equation. That is the height from which it was dropped.

You can input any of the points into the equation and solve for the missing part. You will get 60 for the height.

The use the quadratic formula to see that it reaches the ground after 3.499 seconds.
7 0
2 years ago
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masha68 [24]
((x2-x1),(y2-y1))
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2 years ago
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5≤x≤9 it can also be reversed as 9≥x≥5 which is the same thing
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3 years ago
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When a cold drink is taken from a refrigerator, its temperature is 5°C. After 25 minutes in a 20°C room its temperature has incr
Andrews [41]

Answer:

  (a)  13.85 °C

Step-by-step explanation:

The temperature difference is a decaying exponential function of time. Here, it decreases from an initial difference of 15 °C to 10 °C after 25 minutes. So, that temperature difference can be modeled as ...

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We want to find the value of this at t=55. It is ...

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This is the amount the temperature of the drink is below room temperature.

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The temperature of the drink after 55 minutes is about 13.85 °C.

3 0
3 years ago
What is the wavelength of a 320 Hz sound traveling 330 m/s?
maw [93]

Answer:1.03125 meter

Step-by-step explanation:

Velocity =330 meter per second

Frequency =320 Hertz

wavelength=velocity ➗ frequency

Wavelength=330 ➗ 320

Wavelength=1.03125 meter

8 0
3 years ago
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