Solve the problem.A balloon used in surgical procedures is cylindrical in shape. As it expands outward, assume that the length remains a constant 30.0 mm. Find the rate of change of surface area with respect to radius when the radius is 0
mm. The surface area is given by the formula 
where l is the length and r is the radius. (Answer can be left in terms of ?).
A. 60.0? mm2/mm
B. 30.36? mm2/mm
C. 30.18? mm2/mm
D. 60.36? mm2/mm
Answer: D
Mathematics
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Determine the sum or difference in clock 12 arithmetic.(5 + 12) + 7
A. 1 B. 5 C. 12 D. 10
Mathematics
Solve the problem.In triangle ABC, angle A is three times as large as angle C. The measure of angle B is 
less than that of angle C. Find the measure of the angles.
A. 86°, 8° and 86° B. 129°, 8° and 43° C. 86°, 8° and 43° D. 129°, 8° and 86°
Mathematics
Factor out the largest possible common factor.20p + 5q - 5
A. 5(4p + q) B. 5(4p + q - 1) C. 5p(4 + q - 1) D. No common factor
Mathematics
Draw the graph of the line that contains the specified point and has the specified slope, m.(-2, 0), m = 
A. 
B. 
C. 
D. 
Mathematics