An open rectangular tank that is 4 m long, 2 m wide
and 4.8 m high, is initially three-quarters filled
with water. Find the depth of water in the tank after
4000 litres of water are added to it.

32,800 litres

Step-by-step explanation:

V=l*w*h

V=4*2*4.8

V=38.4 cubic meters

38.4 cubic meter -> 38,400 litres

38,400/4=9,600

9,600*3=28,800

28,800+4,000=32,800

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!