Answer: 741
Step-by-step explanation:
As per given ,we have
The prior estimate of population proportion: 
Margin or error : 2.5%=0.025
Critical value for 95% confidence = 
Formula to find the sample size :-
i.e. 
Hence, the minimum sample size required to obtain this type of accuracy= 741
Answer:
240 Feet Cubed
Step-by-step explanation:
Assuming you need the area of the elevator, just multiply the length*width*height, which would be 5*6*8=240
Answer:
CD=9
Step-by-step explanation:
ΔABD=>
AD²=AB² + BD² [Pythagorean Theorem]
BD²= AD²-AB²
BD²=9²-3²
BD²=72
BD=√72=6√2....(1)
ΔBCD=>
CD²=BD²+BC²
CD²=(6√2)² + 3²
CD²=72+9
CD²=81
CD=√81
CD=9
What you need to do is take the two lengths of the sides and use the Pythagorean theorem to find the hypotenuse (a^2+b^2=c^2, c being the hypotenuse)
