Solve the problem.If there is excess demand for a commodity, the price will rise rapidly at first and then more slowly according to what economists call the "Evan's price adjustment model." A typical function describing this behavior is given by 
, where p(t) is the price in dollars after t days. Calculate 
p(t).
A. ?
B. 5
C. 11
D. 8
Answer: D
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Use the formula for 
to evaluate the expression.
A. 0 B. 5040 C. 70 D. 1
Identify the conic that the polar equation represents. Also, give the position of the directrix.r = 
A. hyperbola, directrix perpendicular to the polar axis 3 right of the pole B. ellipse, directrix perpendicular to the polar axis 3 left of the pole C. hyperbola, directrix perpendicular to the polar axis 3 left of the pole D. ellipse, directrix perpendicular to the polar axis 3 right of the pole
Find the general form of the equation for the line with the given properties.Slope = 
; y-intercept = 
A. y = 
x - 
B. y = 
x + 
C. 2x + 5y = -6
D. 2x - 5y = -6
Solve the problem.A triangle drawn on a map has sides of lengths 9.0 cm, 12 cm, and 13 cm. The shortest of the corresponding real-life distances is 108 km. Find the longest of the real-life distances. Round to the nearest unit.
A. 75 km B. 156 km C. 144 km D. 117 km