Answer:

Step-by-step explanation:
since its only 2/5 of 1 hour, two 2/5 equal 4/5 so we divide the 12 2/3 by 2 to find the 1/5 which is 6 1/3
÷2=


Multiply each term by a^2b^2:-
b^2y^2 + a^2x^2 = a^2b^2
subtract a^2x^2 from both sides
b^2y^2 = a^2b^2 - a^2x^2
Now divide both sides by b^2
y^2 = a^2 - a^2x^2 / b^2 = a^2 (1 - x^2/b^2)
take positive square root ( because y > 0)
y = a sqrt(1 - x^2/b^2)
Answer:
20 dollars
Step-by-step explanation:
I think 20+20+20=60 then 60-40=20
Answer:
The volume of the fish tank is 48000 cubic centi meter.
Step-by-step explanation:
The volume of a Cuboid is l*b*h (length*breadth*height)
Here,
length(l) =60 cm
breadth(b)= 20 cm
height(h)=40 cm
Volume=l*b*h
Volume= 60cm*20cm*40cm
Volume= 48000 cubic centimeter