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Delicious77 [7]
3 years ago
15

At midnight the temperature was -8 degree F. At noon the Temperature was 23 degrees F. Which expression represents the increase

in temperature?
Mathematics
1 answer:
Firlakuza [10]3 years ago
6 0

23- -8

This equals to 31. 31 degrees was the increase

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Instructions:select all the correct locations on the tables. andrew wants to purchase a new television with a screen length that
DaniilM [7]

The <em>correct answers</em> are:


5x²+70x+245 ≥ 1050; and

Yes.


Explanation:


Let x be the width of the tablet. Since the width of the TV is 7 inches more than the tablet, the width of the TV would be x+7.


The length of the TV is 5 times the width; this makes the length 5(x+7) = 5x+35.


The area of the TV would be given by

(x+7)(5x+35).


Since Andrew wants the area to be at least 1050, we set the expression greater than or equal to 1050:

(x+7)(5x+35) ≥ 1050


Multiplying this, we have:

x*5x+x*35+7*5x+7*35 ≥ 1050

5x²+35x+35x+245 ≥ 1050


Combining like terms,

5x²+70x+245 ≥ 1050


To see if 8 is a reasonable width for the tablet, we substitute 8 for x:

5(8²)+70(8)+245 ≥ 1050

5(64)+560+245 ≥ 1050

320+560+245 ≥ 1050

1125 ≥ 1050


Since this inequality is true, 8 is a reasonable width.

5 0
3 years ago
Simplify: (7a − 9c) − (−12a − 33c) − (−21a + 10c)
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Art [367]

Answer:

I don't really understand but, the Y coordinate is always on the right side so therefore y= -2, and 1

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Drag the tiles to the boxes to form correct pairs.
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The answer is -23

Step-by-step explanation:

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