<h3>
Answer: C) 5</h3>
==========================================================
Work Shown:
s = square side length
A = area of square = 9x^2+12x+4
A = s^2
A = (ax+b)^2
A = a^2*x^2 + 2abx + b^2 .... apply the FOIL rule
A = 9x^2 + 12x + 4
Equating corresponding terms, we see that,
- a^2*x^2 = 9x^2 which shows that a^2 = 9 and that solves to a = 3, assuming 'a' is positive.
- 2abx = 12x leads to 2ab = 12 or ab = 6. Using a = 3 we can find that b = 2.
- b^2 = 4 solves to b = 2 which matches with the previous value of b found.
Using a = 3 and b = 2, the sum of the values is a+b = 3+2 = 5, so that's why the answer is choice C.
Side note: 9x^2 + 12x + 4 factors to (3x + 2)^2
Answer:
Step-by-step explanation:
The given equation is :
Where
P is pressure
V is volume
n is no of moles
r is Gas constant
T is temperature
We need to solve the above equation for r.
Dividing both sides of the above equation by (nT). So,
So, the value of r is equal to 
.
Answer:
VB B.
Step-by-step explanation:
B.
The answer is thanks a lot
