Answer: x= 58/63 or x= -40/63
Step-by-step explanation: thats your answer.
d = diameter of the copper wire = 8.252 mm
r = radius of the copper wire = d/2 = 8.252 mm /2 = 4.126 mm = 0.004126 m
A = area of cross-section of the copper wire = πr² = (3.14) (0.004126)² = 53.5 x 10⁻⁶
L = length of the copper wire = 2.40 km = 2400 m
ρ = resistivity of copper wire = 1.68 x 10⁻⁸
resistance of copper wire is given as
R = ρL/A
inserting the above values in the formula
R = ( 1.68 x 10⁻⁸)(2400)/(53.5 x 10⁻⁶)
R = 0.753 ohm
We compute the productivity percentage change of each category using the formula:

Productivity percentage change for each category
1) Units produced:

2) Last (hours)

3) Resin (pounded)

4) Capital invested ($)

5) Energy (BTU)

2) Improvement for labour hours
From the previous computations, we see that the percentage change of the category "Last (hours)" has a negative value of -8.33%, which means that this value decreased by 8.33% with respect to the last year.
Answer
1) Productivity percentage change for each category
0. Units produced: ,0%
,
1. Last (hours): , -8.33%
,
2. Resin (pounded):, -10%
,
3. Capital invested ($): ,10%
,
4. Energy (BTU): ,-5%
2) Improvement for labour hours
The percentage change of the category "Last (hours)" has a negative value of -8.33%, which means that this value decreased by 8.33% with respect to the last year.
The equation of a circle with center at (a, b) and radius, r, is given by

The given circle in the graph has the center at (0, 2) with the radius of 1 units.
<span>A circle with the same center as the circle in the graph and that
passes through a point 2 units away from the given circle has its center at (0, 2) and a radius of 3 units.
Thus the equation of the circle is given by

</span>

Step-by-step explanation:
- We expand
using algebraic identity 