Answer:
a=41.8 BC=2.8
Step-by-step explanation:
sin30/6=sinx/8
8*sin30=6sinx
4=6sinx
sin^-1(4/6)
angle a
cosine rule
bc^2=3^2 +5^2-2(3)(5)*cos30
BC^2=
BC=2.83
2.8
An example of heat transfer by convection is the ____.
1 answer:
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Answer:265.25
Step-by-step explanation:
Given
Volume of box
height is 3 times the width
let height, length and breadth be H, L & B
4=B^2\times L[/tex]
Cost of side walls $
Cost of base $
Cost of side walls
Cost of base
Total cost
differentiate C w.r.t B to get minimum cost
L=2.19 m
C=$ 265.25
Answer:
Age of Mark years
Age of Mark's dad years
Age of Mark's sister years
Step-by-step explanation:
Let age of Mark be years.
Mark's dad is three times older than Mark
Age of her Mark's dad
Mark's sister is 2 years younger than Mark
Age of Mark's sister years
The sum of their ages is 48.
Age of Mark years
Age of Mark's dad years
Age of Mark's sister years