Please help! I will mark you as brainliest!

Mathematics

1 answer:

mamaluj [8]3 years ago

4 0

Answer:

Step-by-step explanation:

The purple circle, not ring is pi 7 squared = 153.93804

Then subtract the smaller circles area (pi 4 squared) = 153.9... - 103.6725576 =

50.2654824

Purple ring is 50.2654824

The entire circle is 4+3+3 (10) squared times pi = 314.1592654

( 50.2654824 / 314.1592654 ) x 100 = 15.999999998 %

You might be interested in

Solve each equation. 1. 9/2x+18+3x=11/2 2. (x+6)-(2x=7)-3x=-9

zzz [600]

$1.\\\frac{9}{2}x+18+3x=\frac{11}{2}\ \ \ \ \ |Multiply\ by\ 2\\\\
9x+36+6x=11\\\\
15x+36=11\ \ \ |Subtract\ 36\\\\
15x=-25\ \ \ |Divide\ by\ 15\\\\
x=-1\frac{2}{5}\\\\
2.\\
(x+6)-(2x-7)-3x=-9\\\\
x+6-2x+7-3x=-9\\\\
-4x+13=-9\ \ \ |Subtract\ 13\\\\
-4x=-22\ \ \ |Divide\ by\ -4\\\\
x=5,5$

3 0

3 years ago

A triangle and a trapezoid are graphed on the coordinate plane shown below.

Gre4nikov [31]

Answer:

10 sq units

Step-by-step explanation:

Area of triangle = 1/2(4)(2) or 4 square units

Area of trapezoid = 1/2(2)(2+4) or 6 square units

Combined area = 10 sq units

3 0

3 years ago

Peter rides a bike along a triangular path in the neighborhood park. The sides of the path measure 3.36 miles, 4.18 miles, and 5

Molodets [167]

Answer:

The distance that Peter rides is:

13.15 miles.

Step-by-step explanation:

To identify the miles that Peter rides, you must imagine the triangle with measures: 3.36 miles, 4.18 miles, and 5.61 miles. How you can suppose, Peter regularly rides exactly by each side of the triangle mentioned, then you must find the perimeter of the triangle to identify the miles that Peter rides, remember that the perimeter of an irregular triangle is: