Answer:
None.
Step-by-step explanation:
5/a - 2 / (1 - a) = 2 (a - 1)
Multiply each term by a(1 - a)(a - 1):
5 (1 - a)(a - 1) - 2a(a - 1) = 2a(1 - a)
5( a - 1 - a^2 + a) - 2a^2 + 2a = 2a - 2a^2
5(-a^2 + 2a - 1) - 2a^2 + 2a = 2a - 2a^2
-5a^2 + 10a - 5 - 2a^2 + 2a - 2a + 2a^2 = 0
-5a^2 + 10a - 5 = 0
-5(a^2 - 2a + 1) = 0
= -5(a - 1)^2 = 0
So a = 1.
But a = 1 cannot be a root because 2/ 1 - a would be 2/0 which is undefined.
Also 2 / (a - 1) is undefined.
Answer:
x4,w = 0.03wt%
= 0.03/18 / 0.03/18 + 0.97/ 28.84
= 0.047mol%
Step-by-step explanation:
Let m1 = 100kg
Given:
m1 / m3 = 3.3kg
So, m3 = 3.3 x 100 = 30.30 kg
Degree of freedom analysis:
Xw,3 = 0.015 (18) / 0.015(18) + 0.985(28.84)
= 0.0094%wt
(1 – 0.01)(100kg) = (1- 0.001)m2
m2 = (1 – 0.01)(100kg) / 0.999
m2 = 99.1kg
(100kg)0.01 + 0.0094(30.3kg) = (99.1kg)0.001 + x4,w
(1-0.0094)(30.3) = m4 ( 1-x4,w)
m4 = 30.95kg
x4,w = 0.03wt%
= 0.03/18 / 0.03/18 + 0.97/ 28.84
= 0.047mol%
Answer is 141.6. I did 3/x = 5/236 and got that answer! Good luck!
6x - 7 = 35
6x = 35 + 7 <em> (add 7 and then divide by 6)</em>
6x = 42
x = 42/6
x = 7
Answer:
The area of the shape after it has been enlarged by
scale factor 2 will be: 10 cm²
Step-by-step explanation:
The Area is basically a measure of how much space in square units there is inside an object.
As the shape is shown on the centimeter grid.
- The shape clearly occupies the space of 5-centimeter squares.
We also know that If the scale factor > 1, the image is enlarged.
As we know to determine the area of the shape after it has been enlarged by scale factor 2, all we need to do is to multiply the area of the original shape by 2.
The area of original shape = 5 cm²
The area of the shape after the dilation by a scale factor 2 = 5 × 2 = 10 cm²
Thus, the area of the shape after it has been enlarged by
scale factor 2 will be: 10 cm²
