- Suppose and x is increasing. The value of x for which the rate of increase of f
is 10 times the rate of increase of x is
(A) 1
(B) 2
(C)
(D) 3
(E) - The rate of change of the surface area, S, of a balloon is inversely proportional to the square of
the surface area. Which equation describes this relationship?
(A)
(B)
(C)
(D)
(E) - Two objects in motion from t = 0 to t = 3 seconds have positions x 1 (t) = cos(t^2 + 1) and
respectively. How many times during the 3 seconds do the objects have the same
velocity?
(A) 0
(B) 1
(C) 2
(D) 3
(E) 4 - After t years, 50e −0.015t pounds of a deposit of a radioactive substance remain. The average
amount per year not lost by radioactive decay during the second hundred years is
(A) 2.9 lb
(B) 5.8 lb
(C) 7.4 b
(D) 11.1 lb
(E) none of these
dmanu
(dmanu)
#1