10 points
Question 2: A lake near the Arctic Circle is covered by a 3.8 meters thick
sheet of ice during the cold winter months. When spring arrives, the
warm air gradually melts the ice, causing its thickness to decrease at a
constant rate. After 7 weeks, the sheet is only 2.4 meters thick. Let y
represent the ice sheet's thickness (in meters) after x weeks. Which
equation would best represent this situation? *
O
y = -0.2x + 2.4
O
y = -0.2x + 3.8
O
y = 0.2x + 3.8
O
y = 0.2x + 2.4

  y = -0.2x + 3.8

Step-by-step explanation:

The initial ice thickness is 3.8 m, so that is the constant we expect in the equation.

The thickness is decreasing, so we expect a negative coefficient for x.

The appropriate choice is ...

  y = -0.2x + 3.8

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'.

4.08%

step-by-step explanation: