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anzhelika [568]
3 years ago
12

A weather station on the top of a mountain reports that the temperature is currently 0°C and has been falling at a constant rate

of 3°C per hour. What was the temperature 4.5 hours ago ?
Mathematics
1 answer:
schepotkina [342]3 years ago
3 0

Answer:

10.5 degrees Celsius

Step-by-step explanation:

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Please help please need answer
Annette [7]

Answer:

3/4

Step-by-step explanation:

x = <u>∛27</u>

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6 0
3 years ago
The arca of a picture 25 7/5 square inches.If the width of the picture is 4 1/2 inches.
Stella [2.4K]

Answer:

6 in

Step-by-step explanation:

The <em>area</em> of a picture <em>is</em> 25 7/5 square inches.  If the width of the picture is 4 1/2 inches, what is the length?  <em>(A=(w)(l) </em>)

Assuming that your "25 7/5 square inches" is not a mistake, then this is equivalent to 26 2/5 square inches.

Converting 26 2/5 sq. in. to an improper fraction, we get 132/5 sq. in., which represents the area of the picture.  If the width is 4 1/2 inches, or 9/2 inches, then the length, l, is:

     132/5 in^2

l = ------------------

         9/2 in

To divide 132/5 in^2 by the fraction 9/2 in, invert 9/2 and multiply:

     135 in^2       2

l = -------------- * ------ = 270/9 in = 30/5 in = 6 in

          5              9

8 0
3 years ago
EASY POINTS:
KiRa [710]

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31

Step-by-step explanation:

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4 0
4 years ago
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If f = {(2,5), (3, 2) (4, 6), (5, 1), (7, 2)}, then f is a function.<br> True or false
Kazeer [188]

Answer:

This function is True

Step-by-step explanation:

Since there is one value of  y  for every value of  x .

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