newton's law of cooling is T=Ae^-kt+C where T is the temperature of the object at time t, and C is the constant temperature of the surrounded medium. The temperature of a cake is 390 degrees when it is removed from the oven. The temperature in the room is 68 degrees. In 11 minutes, the cake cools to 310 degrees. How long will it take the cake to cool to 130? While solving this problem, round the value of k to seven decimal places. Round your answer to two decimal places.

the circle one

yep b and c r the correct got it! : )

part a: triangles gcb and epb

part b. sides cg and rp are parallel by definition of parallelogram.

angles cgb and e are congruent by being alternate interior angles of parallel lines cut by a transversal. angles gbc and ebp are congruent because they are vertical angles. by aa similarity, the triangles are similar.

part c. since the triangles are similar, the ratios of the lengths of corresponding sides are equal.

calculation of be:

gb/be = cb/bp

(400 ft)/be = 300/200

(400 ft)/be = 3/2

3be = 2 * 400 ft

3be = 800 ft

be = 800/3 ft

calculation of pe:

gc/pe = cb/bp

(350 ft)/pe = 300/200

(350 ft)/pe = 3/2

3pe = 2 * 350 ft

3pe = 700 ft

pe = 700/3 ft

249824

hope this !