She has to sell 4 computers for option b to be better than option a
Step-by-step explanation:
1st question
a)AB=-a+b=b-a
b)OC=a+b-a+3/2(b-a)=b+3/2b-3/2a=5/2b-3/2a=(5b-3a)/2
2nd question
a)CA=2a
b)AB=-a+b=b-a
c)BC=-b-a
Since they've already told us what triangles are congruent, all we have to do is match up the correct letters.
By CPCTC, angle N is congruent to angle B.
Hope this helps!
Answer: $3.418 from each book
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Hope this helped :)
80 W divided by 1000 (to convert to kW) = 0.08 kW
The total cost can be calculated by multiplying wattage by time by electricity cost. Note how the units will cancel out, given that 2 weeks is equal to 14 days.
(0.08 kW)(0.5 h/day)(14 days) = 0.56 kWh
Multiply by the cost: ($0.08/kWh)(0.56 kWh) = $0.0448
So the closest answer is the first choice.
