Answer: 324 squares.
Explanation: If there are 18 rows of 18 squares, then you’d get 324 after counting them. Or you could just multiply 18 by 18.
The pressure at a certain height is the pressure at sea level plus the hydrostatic pressure.
P = 80 psi + ΔP
where
ΔP = ρgh
ρ is the density of water equal to 62.4 lbm/ft³
ΔP = (62.4 lbm/ft³)(1 lbf/lbm)(4*10 + 2 ft)(1 ft/12 in)² = 18.2 psi
Thus,
P = 80 + 18.2
<em>P = 98.2 psi</em>
Hello there!
Number 1 is C (11, 4) Image is below
I don't know number 2, so so sorry!
Number 3 is A. 36 The formula for perimeter of a rectangle is (2 * base) + (2 * height)
The base = 13
The height = 5
(5 * 2) + (13 * 2)
10 + 26 = 36
Number 4 is 23 units.
I hope I was of assistance!
~ Fire
I think the formula is: P = P₀. e^(rt)
When P = 2P₀, the formula becomes 2P₀ =P₀.e^(rt)
Simplify by P₀, 2=e^(rt)
ln(2) = lne^(rt)
ln2 = rt.lne or lne =1 then ln2 = rt
The number would be 18.
Half of 18 = 9
Two thirds of 18 = 12
9 + 12 = 21