The shape of the room is not a square.
Pythagorean Theorem: 17^2+17^2= 578, square root 578 and you'll get 24.04.
The length of the diagonal of the floor of the room in the plan should have been 24.04 in order to be a square.
        
             
        
        
        
The total area is 1289.41 units².
The total perimeter is  281.32 units.
<h3>What is the total area and perimeter?</h3>
The first step is to determine the side lengths of the other squares: 
- Length of the second square = 2/3 x 27 = 18 
- Length of the third square = 2/3 x18 = 12 
- Length of the fourth square = 2/3 x 12 = 8
- Length of the fifth square = 2/3 x 8 = 5.33
Area of a square = length²
Perimeter of a square  = 4 x length 
- Area of the first square = 27² = 729 
- Area of the second square = 18² = 324
- Area of the first square = 12² = 144 
- Area of the first square = 8² = 64
- Area of the first square = 5.33² = 28.41
Total area = sum of the areas of the 5 squares = 1289.41 units² 
- Perimeter of the first square = 4 x 27 = 108 units
- Perimeter of the second square = 4 x 18 = 72
- Perimeter of the third square = 4 x 12 = 48 
- Perimeter of the fourth square = 4 x 8 = 32 
- Perimeter of the fifth square = 4 x 5.33 = 21.32
Total perimeter = 281.32 units
To learn how a square, please check: brainly.com/question/9030544 
#SPJ1
 
        
             
        
        
        
Answer:
Step-by-step explanation:
H0 : μ = 46300
H1 : μ > 46300
α = 0.05
df = n - 1 = 45 - 1 = 44
Critical value for a one tailed t-test(since population standard deviation is not given).
Tcritical = 1.30
The test statistic :(xbar - μ) ÷ (s/sqrt(n))
The test statistic, t= (47800-46300) ÷ (5600√45)
t = 1500
t = 1500 / 834.79871
t = 1.797
The decision region :
Reject H0: if t value > critical value
1. 797 > 1.30
Tvalue > critical value ; We reject H0
Hence, there is sufficient evidence to conclude that cost has increased. 
 
        
             
        
        
        
Answer:
radius is 7.5cm
Step-by-step explanation:
Convert diameter to centimeter.