-4 < 6
Negative number always less than positive number
Answer:
option B
hope its helpful
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sorry if it isn't correct
Answer:
The width of the skatepark is 100ft^2.
Step-by-step explanation:
Total area= 6000ft^2
The Formula for area= L x W (depends on the shape, but in this case that is the formula)
Length= 60 ft
Width = 100
60 x 100= 6000ft^2
Hope this helped!
Answer:
-1.5
Step-by-step explanation:
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
