Step-by-step explanation:
because angle A and C are similar, so
9x-8=28
9x=36
x=4
Answer:
9A-F
9B-EI
9C-FG
Step-by-step explanation:
We must take into account the following change of units:

Applying the change of units we have that the electric consumption for 1 year is given by:

Then, the total cost is given by:
Answer:
the cost of operating a 3.00-w electric clock for a year is:
$ 2.3652
I assume you're looking for n.
so, take 2n/10-3n/10=2/10. Making everything have the same denominator is always easier.
This way, you have -n/10=2/10.
n=-2.