Solve the problem. Round your answer, if appropriate.A man 6 ft tall walks at a rate of 3 ft/sec away from a lamppost that is 23 ft high. At what rate is the length of his shadow changing when he is 60 ft away from the lamppost? (Do not round your answer)
A. 
ft/sec
B. 
ft/sec
C. 30 ft/sec
D. 
ft/sec
Answer: D
Mathematics
You might also like to view...
Simplify and evaluate using a calculator.
A. 18
B. 
; 81
C. 
; 0.05555556
D. 
; 0.05555556
Mathematics
Evaluate the function at the given values of the variable.f(x) = 7x2 + 6x + 1
a. f(-7)
b. f(-9)
A. 2360, 3916 B. -139, -179 C. 302, 514 D. 4116, 6804
Mathematics
Provide an appropriate response.Calculate the greatest possible error for the measurement 3.09 cm.
Fill in the blank(s) with the appropriate word(s).
Mathematics
xy + y + 7x + 7
A. (x + 1)(7y + 7) B. (x + 1)(y + 7) C. (x + 7)(y + 1) D. (7x + 7)(y + 1)
Mathematics