Answer:
so we have 4(3x + 10)
then we are going to take the 4 and distribute it into our problem
so: 4(times)3x and then 4( times)10
to get :
<h2>12x+40</h2>
Step-by-step explanation:
3/2.52 is 1.5
In other words it is 1 1/2
Answer:
a) Margin of error = 166.311
b) sample size ≥ 62
Step-by-step explanation:
Given:
Average cost = $1599
Sample size = 50 persons
Standard deviation = $600
Confidence level is 95%
a) Margin of error = 
Now for confidence level of 95% z-value = 1.96
Thus,
Margin of error = 
or
Margin of error = 166.311
b) For Margin of error ≤ 150
≤ 150
or
≤ 150
or
≤ √n
or
√n ≥ 7.84
or
n ≥ 61.4656
Therefore,
sample size ≥ 62
Answer:
1/3 of the animals at the shelter are male cats.
Step-by-step explanation:
(4/6)*(1/2)=(4/12) or (1/3)
Answer:
$42.13
Step-by-step explanation: