Answer:
5.3109
Step-by-step explanation:
5.62 x 0.7 is equal to 3.934, and this multiplied by 1.35 is equal to 5.3109.
480/6<span> = 80ft </span>7<span> x 80 = 560ft.</span>
Newton's Law of Cooling
Tf=Ts+(Ti-Ts)e^(-kt) where Tf is temp at time t, Ts is temp of surroundings, Ti is temp of object/fluid. So we need to find k first.
200=68+(210-68)e^(-10k)
132=142e^(-10k)
132/142=e^(-10k)
ln(132/142)=-10k
k=-ln(132/142)/10
k≈0.0073 so
T(t)=68+142e^(-0.0073t) so how long until it reaches 180°?
180=68+142e^(-0.0073t)
112=142e^(-0.0073t)
112/142=e^(-0.0073t)
ln(112/142)=-0.0073t
t= -ln(112/142)/(0.0073)
t≈32.51 minutes
Answer: 7/21 for blue and 6/21 for yellow. so 7/14
Step-by-step explanation:
X=8 would you like me to explain why?
