Answer:
Option (3)
Step-by-step explanation:
Since, flowerbed is in the shape of a right triangle,
By applying Pythagoras theorem in the given right triangle,
(Hypotenuse)² = (leg 1)² + (leg 2)²
(Hypotenuse)² = (12)² + (12)²
(Hypotenuse)² = 144 + 144
Hypotenuse = √288
Hypotenuse = 16.97 
                      ≈ 17 ft
Perimeter of the triangle = Sum of the measures of three sides of the triangle
= 12 + 12 + 17
= 41 ft
Therefore, Option (3) will be the correct option.
 
        
             
        
        
        
Answer:

Step-by-step explanation:
The confidence interval for the population mean x can be calculated as:

Where x' is the sample mean, s is the population standard deviation, n is the sample size and  is the z-score that let a proportion of
 is the z-score that let a proportion of  on the right tail.
 on the right tail.
 is calculated as: 100%-99%=1%
 is calculated as: 100%-99%=1%
So, 
Finally, replacing the values of x' by 308, s by 17, n by 15 and  by 2.576, we get that the confidence interval is:
 by 2.576, we get that the confidence interval is:

 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
4x2=8
5x2=10
6x2=12
This answer is the closest to 12 but it doesn't go over 12, so this is less than or equal to 12