Answer:
Step-by-step explanation:
y = 9 cos [(⅕pi)x]
Amplitude = 9
Period = 10
2pi/10 = pi/5
no 0.05 is smaller then 0.083
B) {56, 66, 95, 90, 57, 66, 69, 68, 76, 64, 51}
{56, 66, 95, 90, 57, 66, 69, 68, 76, 64, 51} is the only data set that matches the maximum and minimum, upper and lower quartile, and median values.
0 = (x + 1)(x + 1)
Therefore
x + 1 = 0
x = -1 (twice)
(-1, 0), (-1, 0)
