Please help me with this. Numbers 1-11

1. 8.378

2. 3.534

3. 12.566

4. 0.262 rad or

5. 1.222 rad or

6.  5.236 rad or

7. 240°

8. 165°

9. 22.5°

10. 30° = radians

45° = radians

radians = 60°

radians = 90°

120° = radians

radians = 45°

radians = 180°

radians = 270°

360° = radians

11. 9.424 inches

Step-by-step explanation:

Problems 1-3:

S=r*Ф

S= arc length, r= radius, Ф= angle in radians

You need to convert the angle from degrees to radians before you can use it in the equation. You do this by multiplying it by pi and dividing by 180. Then you can plug this and the radius into the equation to solve for the arc length.

1) 120° x = 2.094 rad

S= 4 x 2.094 = 8.378

2) 135° x = 2.356 rad

S= 1.5 x 2.356 = 3.534

3) 240° x = 4.189 rad

S= 3 x 4.189 = 12.566

Problems 4-6:

4) 15° x = 0.262 rad or

5) 70° x = 1.222 rad or

6) 300° x = 5.236 rad or

Problems 7-9:

7) 240°

8) 165°

9) 22.5°

Problem 10:

30° = radians

45° = radians

radians = 60°

radians = 90°

120° = radians

radians = 45°

radians = 180°

radians = 270°

360° = radians

Problem 11:

S= r * Ф

S= 4 *

S= 3 = 9.424 inches

b. x- 48 =120

step-by-step explanation:

answer: when you burn wood, the carbon reacts with the oxygen in the air to create ash and smoke. that is a permanent change you cannot undo that.

step-by-step explanation: