DT/dt=k(T-38)
ln(T-38) = kt+C
T=38 + Ce^(-kt)
Since T(0)=75, 75 = 38+C, so C=37
Since T(30)=60, 60 = 38+37e^(-30k), so k = -ln(22/37)/30 ~= -0.017329
T(60) = 38+37e^(-0.017329*60) = 51.1°F
1007623 is the answer because 442680 plus 564943 is 1007623
Answer:
in 45-45-90 triangle side opposite to 90 is a√2
Step-by-step explanation:
so the answer is C.3√2
put a=3
1/2 ÷ 1/2
= 1/2 ÷ 2/1
= 1/2 × 2/1
= 2/2
= 1