Find the arc length of the semicircle.

13.14 units

Step-by-step explanation: The arc length of a semicircle is half the circumference of the full circle. The circumference of a circle is πd, which in this case is 9π, or 28.26 units. That means the arc length of the semicircle is 14.13 units.

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x

step-by-step explanation:

the true ones are a b and d