Answer
an=a1+(n-1)d
Step-by-step explanation:
a2-a=9_2=7
a3-a2=16-9=7
a4-a3=23-16=7
a5-a4=30-23=7
The radius of cone is 2 inches
<em><u>Solution:</u></em>
<em><u>The volume of cone is given by formula:</u></em>

Where,
"V" is the volume of cone
"r" and "h" are the radius and height of cone respectively
Given that, volume of a cone is 16 pi cubic inches
Its height is 12 inches
Therefore, we get,
V =
cubic inches
h = 12 inches
r = ?
<em><u>Substituting the values in formula, we get</u></em>

Since, radius cannot be negative, ignore r = -2
Thus radius of cone is 2 inches
Answer:
1. No
2. Yes
3. No
Step-by-step explanation:
-4 is equal to -4 but not bigger then -4
8.5 is bigger then -4
-16 ¾ is smaler then -4
(because it is a negative number)
The answer is b, because you have to multiply them by 3