Answer: You need to wait at least 6.4 hours to eat the ribs.
t ≥ 6.4 hours.
Step-by-step explanation:
The initial temperature is 40°F, and it increases by 25% each hour.
This means that during hour 0 the temperature is 40° F
after the first hour, at h = 1h we have an increase of 25%, this means that the new temperature is:
T = 40° F + 0.25*40° F = 1.25*40° F
after another hour we have another increase of 25%, the temperature now is:
T = (1.25*40° F) + 0.25*(1.25*40° F) = (40° F)*(1.25)^2
Now, we can model the temperature at the hour h as:
T(h) = (40°f)*1.25^h
now we want to find the number of hours needed to get the temperature equal to 165°F. which is the minimum temperature that the ribs need to reach in order to be safe to eaten.
So we have:
(40°f)*1.25^h = 165° F
1.25^h = 165/40 = 4.125
h = ln(4.125)/ln(1.25) = 6.4 hours.
then the inequality is:
t ≥ 6.4 hours.
The answer is B)Two rectangular pyramids joined at two congruent lateral faces
Answer:
54+61
Step-by-step explanation:
54 + 61 = 115
61 - 54 = 7
Answer:
T = m + 500
Step-by-step explanation:
I would assume this question is asking for the sum of the two values. Sorry if this isn't helpful. (T means total btw)
Answer:
G
Step-by-step explanation:
it gives an output for all real values.
Domain:all real values.
when x=-15
f(x)=0-32=-32
for all other values f(x)-32
so Range≥-32
