Which of the following formulas would find the surface area of a right cone where s is the slant height, r is the radius, la is the lateral area, ba is the base

LA=πrs

Surface Area=πrs+πr²

Step-by-step explanation:

We are given the slant height(s) and the radius(r) of the cone.

We have to find the formula for Lateral Area(LA) of the cone and surface area of cone.

Lateral Area of cone is given by: πrl

where r is the radius and l is the slant height

Here l=s

Hence, Lateral Area(LA)= πrs

Surface area of cone= lateral area of cone+area of base

                                  = πrs+πr²

The total Surface Area of a right Cone is the sum of the area of its base and the lateral (side) surface.

The formula for the total surface area of a right cone is

Where r is the radius, and l is the slant height

1.true 2.false? ? i think. .

step-by-step explanation:

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!