−4°C, 3°C, −6°C, 0°C, 5°C, −1°C, 7°C n Which is the lowest foretasted temperature?

Mathematics

2 answers:

mario62 [17]3 years ago

6 0

Answer:

-4 is the lowest!

kobusy [5.1K]3 years ago

4 0

Answer:

-4 would be the lowest

Step-by-step explanation:

because The temperature of a body is a measure of the energy of the submicroscopic random motions of the constituent molecules. The minimum possible energy of motion is zero: no motion. We call that absolute zero. In quantum mechanics there’s always some motion, so zero becomes the minimum possible energy of motion of the body. This minimum energy can be altered for example by an external magnetic field, so the zero of temperature is not really perfectly absolute. Depending on what you call zero, changing external conditions might make the real minimum energy a little more or less than that.

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How many times does the graph of 4x = 32 - x2 cross the x-axis? 0 1 2

Yakvenalex [24]

Answer:

Step-by-step explanation:

4x = 32 - x2 would be much clearer if written as 4x = 32 - x^2. Please use

" ^ " to indicate exponentiation.

Rewrite 4x = 32 - x^2 in the standard form of a quadratic: x^2 + 4x - 32

Then the coefficients are a = 1, b = 4 and c = -32.

Find the discriminant. It is b^2-4ac.

Here, b^2-4ac = 4^2 - 4(1)(-32), or 16 + 128, or 144.

Because the discriminant is positive, we know immediately that this quadratic has two real, unequal roots.