Place a cup of 210°f coffee on a table in a room that is 68°f & 10 minutes later it ks 200°f approximately how long will it be before the coffe is 180°f? use newton's law of coolomg
t(t) =ta+ (to-ta)e^-kt
a. 45 minutes
b. 33 minutes
c. 1 hour
d. 15 minutes

Suppose investors can earn a return of 2% per 6 months on a treasury note with 6 months remaining until maturity. the face value of the t-bill is $10,000. what price would you expect a 6-month maturity treasury bill to sell for? (round your answer to 2 decimal places. omit the "$" sign in your response.)

The axis of symmetry for the graph of the function f(x)=1/4^2+bx +10 is x=6. what is the value of b?

Find the value of x. give reasons to justify your solutions! c ∈ ae