Answer:
interval in minutes = (24.88, 35.12)
Step-by-step explanation:
we can use the following formula:
interval = population mean ± (z · σ)
interval = 30 minutes ± (1.28 · 4 minutes)
interval in minutes = (30 - 5.12), (30 + 5.12) = (24.88, 35.12)
1034
c
-3x-2-2x+11
+3x +3x
-2x+11
-11 -11
-13x
y=mx+b
y=-6x+b
3=-6(-1)+b
b=-3
y=-6x-3