The circumference C of a sphere is given as 46.1 cm. Find the surface area of the sphere. (Round your answer to two decimal places.)

Sphere's surface

Step-by-step explanation:

Recall that the circumference of a sphere is related to the sphere's radius (R) via:

So we can solve for the radius R:

Now with this information we can find the surface area of the sphere using the formula:

you probably already have the answer but anyways it's b. 15.0

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!