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Alika [10]
3 years ago
11

Which expression is equivalent to 3(2x + 1) — (x — 1)?

Mathematics
1 answer:
leonid [27]3 years ago
6 0
The answer is C. 5x + 4
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ollegr [7]

Answer:

Step-by-step explanation:

The temperature at a given altitude is

y = 36 - 3x

The temperature on the surface of the planet is the point (0,t) where t is the temperature for the given height.

y = 36 - 3*0

y = 36

So at the surface of the planet is 36 degrees C.

======================

Effectively it is the slope of the equation which is - 3

So ever km going up will mean a loss of 3 degrees. I think they want you to write -3

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4 years ago
Can anyone help please
Liula [17]
The answer is yes. The triangles are congruent.

I measured them with a ruler and they are the same length.

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3 years ago
Two square pyramids have the same volume. For the first pyramid, the side length of the base is 20 in. and the height is 21 in.
Mrrafil [7]
The volume of the pyramid is calculated by multiplying the area of the base by the height of the figure. For this item, for the figures to have the same volume,
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The value of x in the problem is 5 inches. 
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<span>What will be the cost of the glass to cover the picture? 
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