Answer:
$2.40
Explanation:
the unit electricity bill is kilo watt hour.
The 60-watt light bulb has a 400 hour life expectency means it will consume
60×400/1000 = 24 KWh units of electricity. Let us suppose each unit of electricity costs is 10 cents.
Then 24×10 = 240 cents = $2.40
I know the first one is A) Bookmark sites and I think the second one is B) Cross-platform capability.
C. system software
if it means drivers and so on
Answer:
Matlab code is:
>> 
>> 
>> 
>> 
>> 
>>
>> ![Vc=[M(2,:) M(:,3)']](https://tex.z-dn.net/?f=Vc%3D%5BM%282%2C%3A%29%20M%28%3A%2C3%29%27%5D)
Explanation:
>>
>> 

1 7 13 19 25
3 9 15 21 27
5 11 17 23 29
>> 
>>
>> 

>> 
>>
>> 

>>
>>
>> ![Vc=[M(2,:) M(:,3)']](https://tex.z-dn.net/?f=Vc%3D%5BM%282%2C%3A%29%20M%28%3A%2C3%29%27%5D)

>>
The code is tested and is correct. If you put a semi colon ' ; ' at the end of every statement then your answer will be calculated but matlab doesn't show it until you ask i.e. typing the variable (Va, Vb, Vc )and press enter.