Answer:w= 25
Step-by-step explanation:
Cost of bottle of water = (w-1)cents
Cost of bottle of milk = (2w-11)cents
Let x bottles of water cost $4.80= 480 cents
Also,x bottles of milk cost $7.80= 780 cents
x(w-1)= 480
x(2w-11) = 780
x = 480/w-1 = 780/2w-11
960w -5280= 780w-780
180w = 4500
w= 25
Answer:
135 degrees
Step-by-step explanation:
2π radians is the central angle of a full circle, so 2π radians is 360 degrees.
That means that π radians = 180 degrees.
3π/4 radians * (180 degrees)/(π radians) = 135 degrees
Answer:
Following are the answer to the given points.
Step-by-step explanation:
In point a:
The confidence interval for p is 95%
using formula:
In point b:
Because 0.22 is not within the trust interval, they have enough proof of H0 at level 0.05.
In point c:
For the percentage for samples,
from ratio p
from sample ratio
In point d:
Standard deviation is used to measure the interval of confidence
Answer:
a
Step-by-step explanation:
d