The law of cosines states that, if is the angle between sides b and c,
So, plugging our values, we have
This is equal to
Write the explicit formula for the sequence 11,7.3,-1,-5.... ?
1 answer:
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Answer:
The number of each kind of apartment in the building is 130 .
Step-by-step explanation:
Given as :
The total number of floor in a building = 15
The number of apartment on each floor = 26
So, The total number of apartment = 26 × 15 = 390
The number of kinds of apartment in the building is 3 , i.e 1-bedroom , 2-bedroom , 3-bedroom
Let The number of each kind of apartment in building = x
So, According to question
The number of each kind of building =
or, x =
∴ x = 130
Hence The number of each kind of apartment in the building is 130 . Answer