Solve the problem.Find the derivative of the function 
at the point 
in the direction in which the function decreases most rapidly.
A. -9
B. -30
C. -20
D. -10
Answer: D
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Solve the equation.ln (2x - 5) = ln 15 - ln (x - 3)
A. 0, 11/2 B. 3, 3/2 C. ? D. 11/2
Evaluate the spherical coordinate integral.
A. 
?
B. 
?
C. 
?
D. 
?
Provide an appropriate response.An oil tanker is losing oil at a rate of R'(t) = 
where t is the time in minutes and R(t) is the radius of the oil slick in feet. Use n = 6 and Simpson's rule to approximate 
the size of the radius after 5 seconds.
Fill in the blank(s) with the appropriate word(s).
Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero.f(x) = 2
(x + 4)3
A. 3, multiplicity 1, crosses x-axis; 4, multiplicity 3, crosses x-axis B. - 3, multiplicity 1, crosses x-axis; -4, multiplicity 3, crosses x-axis C. - 3, multiplicity 1, touches the x-axis and turns around; -4, multiplicity 3, touches x-axis and turns around D. 3, multiplicity 1, touches the x-axis and turns around; 4, multiplicity 3, touches x-axis and turns around