Answer:
121
Step-by-step explanation:
dP/dt is propotional to P^½
dP/dt = k(P^½)
When P=100, dP/dt=+20
20 = k(100^½)
20 = 10k
k = 2
dP/dt = 2(P^½)
Reciprocate both sides:
dt/dP = 1/[2(P^½)]
dt/dP = ½[P^(-½)]
Integrate wrt P.
t = ½ [(P^½) ÷ ½] + c
t = P^½ + c
Using t = 0, P =100.. find c
0 = 100^½ + c
0 = 10 + c
c = -10
t = P^½ - 10
Find P when t=1
1 = P^½ - 10
P^½ = 11
P = 121
Answer:
Danalya napped 1 7/20 hours.
Step-by-step explanation:
Rewriting our equation with parts separated
=3+3/4−2−2/5
Solving the whole number parts
3−2=1
Solving the fraction parts
3/4−2/5=?
Find the LCD of 3/4 and 2/5 and rewrite to solve with the equivalent fractions.
LCD = 20
15/20−8/20= 7/20
Combining the whole and fraction parts
1+7/20= 1 7/20
Answer:
6x < - 39 3/4
Step-by-step explanation:
Answer:
volume of a cylinder = 1408
hope this answer helps you...
Answer:
The answer is 9 days
Step-by-step explanation:
First, we realise
-1.F = 1 day
-9.F = 9 days
The -1.F times 9 gives us one so the days times 9 as well.
Answer = 9