Evaluate the integral.
A. 
e6
B. 972
C. 108
D. 108e3
Answer: C
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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.
Middletown is designing a new high-speed rail system to connect Downtown, the Airport, and the Mall. The elevated tracks for the rail system will run along the existing roads, that run on a grid as shown below. In addition, a central switching station must be located at one of the intersections.
What is the length of the optimal network?
A. 7 blocks
B. 8 blocks
C. 5 + 
blocks
D. 9 blocks
E. none of these
Provide an appropriate response. Determine which ordered pair is NOT a solution to the equation 2x + 5y = 20.
A. (2, 5) B. (10, 0) C. (15, -2) D. (0, 4)
Multiply and, if possible, simplify.
? 
A. 
B. 
C. 
D. 