1. Determine the pressure if the force acting on a circular object is 15 lbs and its diameter is 5 cm.

Step-by-step explanation:

force per unit area is called pressure.

radius=5/2 cm

area=π(5/2)²=25/4π

force=15 lbs

pressure=15÷25/4π=(15×4π)÷25=12π/5=2.4π lbs per square cm

x= -3

step-by-step explanation:

step 1: simplify brackets

4 - x - 1 = 6

step 2: simpilfy

3 - x = 6

step 3: subtract 3 from both sides

-x = 6 - 3

step 4: simpilfy 6 - 3

-x = 3

step 5: multiply both sides by -1

x = -3

3: 2

step-by-step explanation:

shorter piece is 2: 3, so just reverse it, and you get 3: 2