3a. Nigel is building an ice sculpture. He doesn't want his ice to melt too quickly! His ice sculptures start at a temperature of 20.5 °F and
he keeps them in a room that is 40 OF. If the decay constant is 0.05,
write an equation that models the situation where T(t) represents
the temperature of the ice sculpture after t minutes.
T(t)=T,+(T.-T.)e-4
36: What will the temperature of the ice sculpture be after 20 minutes?
Round to 3 decimal places

it 2

step-by-step explanation:

8^1/3=2

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950