We need to figure out how much string would be left, after taking away the first two pieces.
We know that the first piece is 20 inches long, so we can say that there is 52-20 inches left, or 32 inches.
The second piece is between 12 and 18 inches, meaning that there would be between 32-12 and 32-18 inches left for the third piece, or 20 and 14 inches. This means that the third piece would be at least 14 inches long, but no more than 20, since we don’t have more string than that (20+12+20=52, and 20+14+18=52)
So we can say that x is greater or equal to 14, but less than or equal to 20, or:
14<=x<=20 (“<=“ is written like a normal “<“ sign with a line _ right under it)
Answer:
12
Step-by-step explanation:
3 + x>-9 x=12 15>-9
Answer:
18.84
Step-by-step explanation:
Since the formula for circumference is 
, we need to first find the radius. The formula for the radius is 
, so we will get 
. Substitute that into , and we get 
. Hope this helps!
<h2><u><em>
Please mark brainliest!</em></u></h2>
Answer:
Step-by-step explanation:
Firstly, you need to know that raising a fraction to a power raises both the top and the bottom to that power.
Second, a negative power on the top and bottom flips the fraction
Last, raising a power to a power multiplies the powers
So, 
=
=
=
