Answer:
a) The possible solutions are:
x=7 and x=-3
b)The extraneous solution
is x=
Step-by-step explanation:
The last step gives us the possible solutions.
By the zero product property,
This implies that:
The original equation is
We substitute x=-3 to get;
This not true, therefore x=-3 is an extraneous solution.
We substitute x=7
Therefore x=7 is the only solution.
Answer:
The constant of proportionality is the amount of cars washed in this case for every 5 cars washed the club earned y amount of money.
Hope this helpes?!
Answer:
Five and thirty-nine thousandths in standard decimal form is
5.039
Hope This Helps!!!
Make the equations equal to each other to find x.
21.2x+c=5.3(4x-4.6)
Now distribute.
21.2x+c=21.2x-24.38
So c= -24.38
Answer:
The AVERAGE function calculates the average of numbers provided as arguments. To calculate the average, Excel sums all numeric values and divides by the count of numeric values. This behavior can be replicated with the SUM and COUNT functions like this: = SUM(A1:A5) / COUNT(A1:A5) // manual average calculation
Step-by-step explanation: