Answer:

Step-by-step explanation:
This is flux problem (see diagram below)
Since electric field is vertical to the top and bottom of the cube. total flux will be sum of flux up and down i-e
Фtotal=Фup + Фdown = Ф 260 + Ф150
But flux is given by scalar product of Electric field and area
Ф=E.A= EA cos∅
where ∅ is the angle between two vector quantities E the electric field and A the area vector. So, total flux is
Фtotal = 




But we know that according to Gausse's Law total flux is given by;
Total flux = q / ∈
==> q= ∈(Total flux)


The second derivative at the point (2,2) is 34/9
<u>Explanation:</u>
<u></u>
2x⁴ = 4y³
2x⁴ - 4y³ = 0
We first need to find dy/dx and then d²y/dx²
On differentiating the equation in terms of x
dy/dx = d(2x⁴ - 4y³) / dx
We get,
dy/dx = 2x³/3y²
On differentiating dy/dx we get,
d²y/dx² = 2x²/y² + 8x⁶/9y⁵

d²y/dx² = 34/9
Therefore, the second derivative at the point (2,2) is 34/9
Answer:
-2/0
Step-by-step explanation:
I am pretty sure this is called undefined.
<span>10x - 3(2x + 5)
= </span><span>10x - 6x - 15
= 4x - 15
answer
</span><span>a) 4x - 15</span>