Find the Area of the figure below, composed of a square and four semicircles. Rounded to the nearest tenths place

The area of figure is: 2313

Step-by-step explanation:

We need to find area of the figure.

Figure is composed of one square and 4 semicircles.

So, we find area of both square and semicircles.

First we will find area of square.

Length of square = 30

The formula used is:

Putting values and finding area of square

Now, we will find the area of semicircle

Diameter of semicircle = 30

Radius r = d/2 = 30/2 = 15

Now, The formula used is:

Putting values and finding area of semicircle

Now, we have 4 semicircles, all will have same area as their diameter is 30

So,

So, the area of the figure will be:

Area of figure= Area of Square+ Area of 4 semicircles

Area of figure = 900+1413

Area of figure=2313

So, the area of figure is: 2313

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.