In order for a gear to work in a piece of machinery, the radius of the gear, r, must be greater than 4 cm, but not exceed 4.1 cm. which compound inequality represents the situation?

a. r > 4 and r ≤ 4.1
b. r > 4 or r ≤ 4.1
c. r < 4 and r ≥ 4.1
d. r < 4 or r ≥ 4.1

Let

r------> the radius of the gear

we know that

The value of r, must be greater than cm, but not exceed cm

The compound inequality that represent this situation is

the solution is the interval------->

all real numbers greater than and less than or equal to

the solution in the attached figure

the answer is the option A

and

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!