What is denoted using a definite measure in beats per minute?

a)tuning
b)tempo
c)tonality
d)vibrato

Tempo is denoted using a definite measure in beats per minute. Tempo is associated to meter and is usually measured by beats per minute. In musical term, tempo signifies how fast or slow a given piece is.
Therefore the answer to this question is letter B. Tempo.

The answer is false

5.66 seconds from when the rock was thrown. first construct an expression to represent the distance from the water to the rock. first account for the starting distance. d = 43 + ? now add in the distance based upon the initial velocity d = 43 + 21t + ? now add in the acceleration due to gravity d = 43 + 21t - 0.5at^2 now substitute the known values into the formula. 5 = 43 + 21t - 0.5*9.8*t^2 subtract 5 from both sides and perform the multiplication 0 = 38 + 21t - 4.9t^2 we now have a quadratic function with a=-4.9, b=21, c=38. using the quadratic formula, we can find the solutions at t = 5.66 and t=-1.37 since the negative time doesn't make sense, the correct value will be t = 5.66 seconds.