Ball=sphere
Vsphere=pir^3
d/2=r
d=9
9/2=4.5=r
V=pi4.5^3
V=pi91.125
aprox pi=3.141592
V=286.227
round
V=286 in^3
<h3><u>The value of x is greater than or equal to the value -15.</u></h3>
3(x + 7) ≥ 2x + 6
<em><u>Distributive property.</u></em>
3x + 21 ≥ 2x + 6
<em><u>Subtract 2x from both sides.</u></em>
x + 21 ≥ 6
<em><u>Subtract 21 from both sides.</u></em>
x ≥ -15
12y - 4 = 32
+4 +4
12y = 36
divide 12 by both y and 36
y = 3
add 4 to both sides of the equation to get y alone. (keep in mind that whatever you do to one side you MUST do to the other.) next you still need to get y alone by dividing by 12 on both sides.
!! INVERSE OPERATIONS !!
