Decide whether the slope is positive, negative, zero, or undefined.
A. Undefined
B. Positive
C. Negative
D. Zero
Answer: A
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Refer to Exhibit 4-1. If consumers decide that they want 20 percent fewer weezils at every price, the equation for the new demand curve for weezils will be
a. Qd = 20 - 1.6P. b. Qd = 0.2(20 - 2P). c. Qd = 0.8(20 - 2P). d. Qd = 80(20 - 2P).
Solve the problem.Quail are game birds that fair poorly when their habitat is encroached. Wildlife biologists have discovered that the population of quail in a region can be related to the percent of the region that has been paved with roads and parking lots. The population is P = k ln
, 0 ? x ? 28,where x is the percent of the region that is paved. For a particular rural region, 
when 
Predict what the quail population will be in this region when
it becomes 8% paved. A. 0 quail B. 621 quail C. 568 quail D. 579 quail
Write the augmented matrix for the system.
A. 
B. 
C. 
D. 
Solve the equation by completing the square.5x2 + 9x = 0
A. ± 
B. 0
C. - 
, 0
D. 
, 0