Solve the problem.How many spanning trees does the following network have?
A. 15
B. 25
C. 23
D. 24
E. none of these
Answer: C
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Find a logistic function that describes the population. Graph the population function.The population increases from 350 to 700 in the first year and eventually levels off at 2,450.
A. P = 
B. P = 
C. P = 
D. P = 
Solve the problem.An asteroid from deep space is sighted from the earth moving on a parabolic path with the earth at the focus. When the line from the earth to the asteroid first makes an angle of 90° with the axis of the parabola, the asteroid is measured to be 60 million miles away. How close will the asteroid come to the earth? Treat the earth as a point.
A. 6 million miles B. 3 million miles C. 9 million miles D. 30 million miles
Find the curvature of the space curve.r(t) = 12ti + 
j + 
k
A. ? = 
B. ? = 
C. ? = 
D. ? = 
Solve the problem.A coil of wire rotating in a magnetic field induces a voltage given by 
where t is time in seconds. Find the smallest positive time to produce a voltage of 10
.
A. 3.33 sec B. 3? sec C. 3 sec D. 3.33? sec