Match the equation with the surface it defines.- 
+ 
+ 
= 1 
A. Figure 4
B. Figure 3
C. Figure 1
D. Figure 2
Answer: B
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Decide whether vertex A of the network is even or odd.
A. Even B. Odd
Solve the problem.Coffee is best enjoyed at a temperature of 125°F. A restaurant owner wants to discover the temperature T at which he should serve his coffee so that it will have cooled to this ideal temperature in 4 minutes. He discovers that a cup of coffee served at 195°F cools to 180°F in one minute when his restaurant is at 74°F. If he maintains the restaurant temperature at 74°F, at what temperature should he serve the coffee to meet his goal?
A. 195°F B. 181°F C. 161°F D. 156°F
For the resistor shown below, find the resistance and the tolerance, written as a percent.
A. 10000 ? , ±20% B. 300000 ? , ±10% C. 10000 ? , ±10% D. 30000 ? , ±10% E. 39000 ? , ±10%
The graph of an exponential function is given. Select the function for the graph from the functions listed.
A. f(x) = 3x B. f(x) = - 3-x C. f(x) = 3-x D. f(x) = - 3x