Answer:
m∡ZA = 51°
m∡ZB = 39°
Step-by-step explanation:
∡ZB = 'b'
∡ZA = '12 + b'
b + 12 + b = 90
2b + 12 = 90
2b = 78
b = 39
12 + 39 = 51
Answer: 60 L
Step-by-step explanation:
Given
The measurement of a rectangular vessel is 
If we multiply the given terms then it will give the volume of the rectangular vessel in
.
So, the volume of the rectangular vessel is

Also, we know
i.e. to convert
to L, divide the result by 1000.

Answer:
the first option
Step-by-step explanation:
d=m/v
must get v alone
(m)d = m/v(m)
on the right side, multiply m/v by m.
this cancels out the m's, leaving v alone.
on the left side, multiply d times m.
dm=v