What is the area of the following circle?

49π or 153.86

Step-by-step explanation:

Hi there,

The formula for area of a cirlcle is A =

So, to find the area, simply plug in the radius into the equation.

A = π *

A = 49π

The area is either 49π or if you use 3.14 for pi, it's 153.86.

Hope this helps!

- Emily

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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