Answer:
what i need to do?
Step-by-step explanation:
Adding 5 to 1346787654323567, you get 1346787654323572.
Answer:
Step-by-step explanation:
l= 20 in ; b = 40 in; h = 50 in
Surface Area = 2*(lb+bh+hl)
= 2*(20*40 + 40*50 + 50*20)
=2*(800 + 2000 + 1000)
=2*3800
= 7600 square inches
Answer:
A sample size of 1380 should be obtained.
Step-by-step explanation:
Minimum sample size:
The minimum sample size is of:
In which z is the critical value, related to the confidence level, E is the desired margin of error, 
and 
are the proportions.
99% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
Estimates of 22.6% male and 18.1% female from a previous year
This means that 
.
Within 3 percentage points, minimum sample size:
This is n for which 
. So
Rounding up:
A sample size of 1380 should be obtained.
Answer:
The measure of angle x is 25 degrees.
Step-by-step explanation:
Since triangle ABC is an isosceles triangle, the measure of angle BAC is equal to the measure of angle ACB. Angle ABC = 80 degrees, leaving 100 degrees to be divided equally for the measures of the other two angles. Now that you know that angle ACB = 50 degrees, you can calculate the value of angle ACD and determine that angle ACD = 130 degrees. Triangle ACD is also an isosceles triangle, and the two equal legs are AC and CD. Since angle ACD = 130 degrees, the other two angles have a total of 50 degrees. Splitting the 50 degrees equally between the two angles gives you 25 degrees as the value of angle CAD, which is labeled "x."
