Answer:
45.44/71 - 1 = -0.36 = -36%
36% decrease.
Answer:
A.
Step-by-step explanation:
the absolute value of -5 = 5.
5+8=13.
Hope this helped.
Answer:
At least 547 records need to be studied.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence interval 
, we have the following confidence interval of proportions.
In which
Z is the zscore that has a pvalue of 
.
And the margin of error is:
95% confidence interval
So 
, z is the value of Z that has a pvalue of 
, so 
.
In this problem, we have that:
At least 547 records need to be studied.
How many crayons are there in total? The answer is 9 boxes multiplied by 8 crayons which equals 72 total crayons.
Answer:
162 km per hour
Step-by-step explanation:
Hi!
Speed=Distance x Time
So... 3 x 54 = 162
Hope this helps :)
