Solve the equation by factoring.65x2 + 55x = 0
A. 
B. 
C. {0}
D. 
Answer: D
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Solve the problem.A construction crane lifts a 100-lb bucket originally containing 155 lb of sand at a constant rate. The sand leaks out at a constant rate so that there is only 77.5 lb of sand left when the crane reaches a height of 60 feet. How much work is done by the crane?
A. 12,975 ft ? lb B. 2925 ft ? lb C. 15,300 ft ? lb D. 6975 ft ? lb
Use the graph of the function f(x) to locate the local extrema and identify the intervals where the function is concave up and concave down.
A. Local minimum at x = 3 ; local maximum at x = -3 ; concave up on (-?, -3) and (3, ?); concave down on (-3, 3) B. Local minimum at x = 3 ; local maximum at x = -3 ; concave up on (0, ?); concave down on (-?, 0) C. Local minimum at x = 3 ; local maximum at x = -3 ; concave down on (0, ?); concave up on (-?, 0) D. Local minimum at x = 3 ; local maximum at x = -3 ; concave down on (-?, -3) and (3, ?); concave up on (-3, 3)
Find the angle between the given vectors to the nearest tenth of a degree.a = 
, b = 
A. 118.4° B. 54.2° C. 44.2° D. 108.4°
In order to be successful, strategic leaders must only make revolutionary changes when they are new to an organization.
Answer the following statement true (T) or false (F)