A 6-ft tall man is walking away from a street light 12 ft high at a speed of 6 ft/sec . How fast is the tip of his shadow moving along the ground?
?
__________ ft/sec
Fill in the blank(s) with the appropriate word(s).
12
Mathematics
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Solve the problem.Experience shows that a ski lodge will be full (177 guests) if there is a heavy snow fall in December, while only partially full (80 guests) with a light snow fall. What is the expected number of guests if the probability of a heavy snow fall is .40?
A. 138.2 B. 106.2 C. 70.8 D. 118.8
Mathematics
Find and simplify the difference quotient 
for the given function.f(x) = 
A. 
B. 0
C. 
D. 
Mathematics
Use the vertical-line test to determine whether the graph represents a function.
A. Yes B. No
Mathematics
Use the elimination method by addition to find the solution for the following system.
A. x = 6, y = 1 B. x = 4, y = 0 C. x = 5, y = -2 D. x = 3, y = 0
Mathematics