4(-6x – 3) + 24x = -72x + 132
Step 1 -24x – 12 + 24x = -72x + 132 Distribute Property of Equality
Step 2: –12 = -72x + 132 equivalent
Step 3: -144 = -72x Subtraction Property of equality
Step 4: 2 = x Equivalent / Division property of equality
(3,4) and (-5,6) are "coordinate planes".
These appear in algebra and math when you're graphing. These coordinate planes consist of "x" and "y" (x,y). The x's (which are 3 and -5 in your situation) should be graphed accordingly using the x-axis and the y's (which are 4 and 6 in your situation) should be graph accordingly using the y-axis.
Step-by-step explanation:
<u>Formula:</u>
![\boxed{a = 3.14(r)^{2} }](https://tex.z-dn.net/?f=%5Cboxed%7Ba%20%3D%203.14%28r%29%5E%7B2%7D%20%7D)
r represents the radius.
The radius is 1/2 of the diameter.
Since 1/2 of 16 is 8, 8 is our radius.
<u>Substitute:</u>
![a = 3.14(8)^{2}](https://tex.z-dn.net/?f=a%20%3D%203.14%288%29%5E%7B2%7D%20)
<u>Solve:</u>
![a = 3.14(64)](https://tex.z-dn.net/?f=a%20%3D%203.14%2864%29)
![a = 200.96in^{2}](https://tex.z-dn.net/?f=a%20%3D%20200.96in%5E%7B2%7D%20)
Answer:
27
Step-by-step explanation:
Multiply 8×.75 (6)
Add that to 21