Using a dot product, calculate the work done in the given situation.A car is pulled 180 feet on level ground by a constant force of 75 pounds applied to a rope inclined at an angle of 9° relative to the ground.
A. 2111.9 ft-lb
B. 13,333.8 ft-lb
C. 13,500 ft-lb
D. No work is done
Answer: B
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Show that the points form the vertices of the indicated polygon. ? Right triangle: (6, 2), (3, 4), (-3, -5) ?
A. 
B. 
C. 
D. 
E. 
Provide an appropriate response.The graphs f(x) = 4x and g(x) = 
x are symmetric with respect to _________ .
A. the x-axis B. the y-axis C. the origin (0,0) D. y = x
Rationalize the denominator and simplify.
A. 
B. 
C. 
D. 11
Solve the problem.Use the formula 
where the loudness of a sound in decibels is determined by I, the number of watt/m2 produced by the soundwave, and 
A certain noise produces 
of power. What is the decibel level of this noise? Round to the nearest decibel.
A. 206 decibels B. 80 decibels C. 9 decibels D. 90 decibels