Try C, not sure if that’s the answer. Graphing would help you
Answer:
A. 804 cm²
Step-by-step explanation:
Formula :
A = 3.14 × 16²
A = 3.14 × (16 × 16)
A = 3.14 × 256
A = 803.84 cm²
A = <u>8</u><u>0</u><u>4</u><u> </u><u>cm²</u> (rounded)
So, the approximate area of the shown below is 804 cm² (A)
#CMIIW ^^
<span>∇ · (|r| r)
=</span>|r| <span>∇ · ( r) + r </span><span>∇ · |r|
</span>
|r| =√x²+y²+z²
<span>∇ · ( r) =dr/dx +dr/dy+dr/dz= i+j+k
so
</span>∇ · (|r| r)
=<span>√x²+y²+z² (</span><span>i+j+k) + </span><span>(x i + y j + z k ) </span>∇ · |r|
∇ · |r|= 2(x+y+z)/<span>√x²+y²+z²
finally
</span>
∇ · (|r| r)
=<span> |r|</span><span> (i+j+k) + 2(xi+yj+zk)/</span><span> |r|=</span><span>|r| (i+j+k) + 2r/</span><span>|r|</span>
The first answer is A, because the equation can be converted into y=1/2x + 4. The second answer is also A.
Y = -3/5x + 5.4 is the answer
