You put a drink in the freezer to cool. When it is chilled, you take the drink out but, being forgetful, leave it sitting on the kitchen counter. The temperature D, in degrees, of the drink t minutes after it is put in the freezer is given by
?
.
?
When during the first 20 minutes is the drink the warmest, and what is its warmest temperature? Be careful. You are asked for the warmest temperature, not the coldest. Round your answers to two decimal places.
?
A. It reaches its warmest temperature of 72.00 degrees when it is first put in the freezer.
B. It reaches its warmest temperature of 0.00 degrees when it is first put in the freezer.
C. It reaches its warmest temperature of 20.00 degrees after 54.93 minutes.
D. It reaches its warmest temperature of 54.93 degrees after 20.00 minutes.
Answer: A
You might also like to view...
Give the measure of the missing angle using the similar triangles below.?E
?ABC ~ ?DEF, ?B = 59°, 
= 5 cm
A. 5 cm B. 31° C. 59° D. 90°
Evaluate the expression.71
A. 7
B. 1
C. -7
D. 
Solve the problem.Let A = {p, q, r, s, t} and B = {p, r, t, u, v}. Find n(A ? B).
A. 3 B. 10 C. 7 D. 2
Write the equation of the line in slope-intercept form.m = 
, y-intercept (0, 4)
A. y = - 
x - 4
B. y = 
x - 4
C. y = - 
x + 4
D. y = 
x + 4