Answer:
1st: volume = long x wide x high = 7 x [sqrt(25^2-7^2)] x 4 = 7 x 24 x 4 = 672
2nd: volume = area of base(circle) x high = pi x 9^2 x 8 = ~ 2035.8
3rd = volume = area of base(triangle) x high = [sqrt(3)/4] x 14^2 x 20 = ~1697.4
15
(even if it’s a joke I want points)
Check the picture below.
something worth noticing 
so, we're really graphing x+2, with a hole at x = 3, however, when x = 3, we know that f(x) = 5, but but but, when x = 3, x+2 = 5, so we end up with a continuous line all the way, x ∈ ℝ, because the "hole" from the first subfunction, gets closed off by the second subfunction in the piece-wise.
Answer:
2400 gallons of water
Step-by-step explanation:
The new shower head releases 2 gallons per minute as compared to the old type.
each person spends an average of 8 minutes in shower per day. This means each person will use 8*2 number of gallons per day.
the number of persons in the family is 5.
if 1 person uses 8*2 gallons per day, 5 people will require 8*2*5
In a 30 days period the number of gallons used by the family will be
=8*2*5*30
=2400 gallons.
