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

-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.

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

step-by-step explanation: