The following information is related to Sheffield Company for 2020. Retained earnings balance, January 1, 2020 $1,195,600 Sales Revenue 30,500,000 Cost of goods sold 19,520,000 Interest revenue 85,400 Selling and administrative expenses 5,734,000 Write-off of goodwill 1,000,400 Income taxes for 2020 1,517,680 Gain on the sale of investments 134,200 Loss due to flood damage 475,800 Loss on the disposition of the wholesale division (net of tax) 536,800 Loss on operations of the wholesale division (net of tax) 109,800 Dividends declared on common stock 305,000 Dividends declared on preferred stock 97,600 Sheffield Company decided to discontinue its entire wholesale operations (considered a discontinued operation) and to retain its manufacturing operations. On September 15, Sheffield sold the wholesale operations to Rogers Company. During 2020, there were 500,000 shares of common stock outstanding all year.

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

78.59 is the mean

step-by-step explanation:

a.   we have two

lines:   y = 4-x   and  

y = 8-x^-1

given two simultaneous equations that are both to be

true, then the solution is the points where the lines cross. the intersection is

where the two equations are equal. therefore the solution that works for both

equations is when

4-x = 8-x^-1

this is where the two lines will cross and that is the

common point that satisfies both equations.

b.   4-x = 8-x^-1

  x           4-x       8-x^-1

-3           7        

8.33

-2           6         8.5

-1           5         9

  0           4        

-

  1           3        

7

  2           2        

7.5

  3           1         7.67

the table shows that none of the x values from -3 to 3 is

the solution because in no case does

4-x = 8-x^-1

to find the solution we need to rearrange the equation to

find for x:

4-x = 8-x^-1

multiply both sides with x:

4x-x^2 = 8x-1

x^2+4x-1=0

x= -4.236, 0.236

therefore there are two points that satisfies the

equation.

find y:  

x=-4.236

y = 4-x   = 4 – (-4.236)

= 8.236

y = 8-x^-1 =   .236)^-1

= 8.236

x=0.236

  y = 4-x   = 4 – (0.236) = 3.764

y = 8-x^-1 =   8-(0.236)^-1

= 3.764

thus the two lines cross at 2 points:

(-4.236, 8.236) & (0.236, 3.764)

c.   to solve

graphically the equation 4-x = 8-x^-1

we would graph both lines: y = 4-x   and   y

= 8-x^-1

the point on the graph where the lines cross is the

solution to the system of equations.

just graph the points on part b on a cartesian coordinate

system and extend the two lines.   the

solution is, as stated, the point where the two lines cross on the graph.

step-by-step explanation:

mark brainliest!