21.1 should be the correct answer because 4.5% of 2000 is 90
Answer:
y = 5 sin (2x) + 4
Step-by-step explanation:
this is sines function,
the amplitude is [9 - (-1)]/2 = 10/2 = 5
the period is 2πx/π = 2x
the x-axis of actual function is at y = 4
so, the function is :
y = 5 sin (2x) + 4
Answer:
x = -10
Step-by-step explanation:
-4x - 18= 22
-4x = 22 + 18
-4x = 40
x = 40/-4
x = -10
