Robert takes a roast out of the oven when the internal temperature of the roast is 165°f. after 15 minutes, the temperature of the roast drops to 135°f.

the temperature of the room is 70°f.

how long does it take for the temperature of the roast to drop to 110°f?

use the newton's law of cooling equation, t(t)=ta+(t0−ta)ekt .

enter your answer in the box. round your answer to the nearest minute.

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

kk.bj.

step-by-step explanation:

.mnm.kn.kj

the anwser is d) 75°

step-by-step explanation: