Part of a marching band formed a triangle with the trumpet players on one side, clarinet players on one side, and saxophone players on the third side. The angle formed by the trumpet and saxophone
players measured
65. If the clarinet line is 20 feet long and the saxophone line is 8 feet long, find
the angle formed by the trumpet and clarinet players. How do you show the work and get the answer?k

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

rotation point l

step-by-step explanation:

step-by-step explanation: 2

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.