The lateral area of a right cone which has a base diameter of four units and a height of 10 units is:

since it has a diameter of 4, then its radius is half that, or 2.

Step-by-step explanation:

The  lateral area of right cone is calculated by the following formula

Where r is the radius of the cone and h is the height

In this case we know that the diameter d of the base is:

So the radius is:

and

So the area is:

-18

step-by-step explanation:

because mean value defines that total sum value over total number of set

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!