Answer:24cm 
Step-by-step explanation: 
if there is 2 sides  with the same like the length is 8 and 2 sides(8*2)=16
and the width is half (8/2) =4 double for 2 sides (4*2) = 8 
8+16
 
        
             
        
        
        
Answer:

Step-by-step explanation:
<em>Step 1: Define significance level</em>
In this hypothesis testing problem, significance levels α is selected:  , the associated z-value from Laplace table:
, the associated z-value from Laplace table: 
Φ( ) = α -
) = α - 
=>  =
 = 
<em>Step 2: Define null hypothesis (</em> <em>) and alternative hypothesis (</em>
<em>) and alternative hypothesis (</em> <em>)</em>
<em>)</em>
 : rate of flu infection
 : rate of flu infection  = 8.3% or 8.3/100 = 0.083
 = 8.3% or 8.3/100 = 0.083
 : rate of flu infection
 : rate of flu infection  < 8.3% or 8.3/100 = 0.083
 < 8.3% or 8.3/100 = 0.083
<em>Step 3: Apply the formula to check test statistic:</em>

with  is actual sampling percent,
 is actual sampling percent,  is rate of flu infection of
 is rate of flu infection of  ,
,  is number of samples.
 is number of samples.
The null hypothesis will be rejected if 
<em>Step 4: Calculate the value of K and compare with </em>
 
  
We have 
=>This is good evidence to reject null hypothesis.
=> The actual rate is lower. (As  states)
 states)
Hope this helps!
:)
 
        
             
        
        
        
Answer:
 £132
Step-by-step explanation:
15% of  520 is 78
15% of 360 is 54
78 + 54 = 132
 
        
             
        
        
        
Mathematical Answer: 2cups*3/4 = 1 and 1/2 cups or 1.5 cups.
How to do it while cooking:
- Get out a container large enough to hold at least 4 cups sauce
- Get out a "1 cup" and "1/2 cup" measuring cup.
- Measure out 1 cup of sauce with the "1 cup" measuring cup.
- Measure out  1/2 of a cup of sauce with the '1/2 cup' measuring cup.
- pour both cups into the larger container.
And there you go you have 3/4 of 2 cups of sauce.
<em>Hoped this helped!</em>
 
        
                    
             
        
        
        
Answer:
The answer is 50 degrees
Step-by-step explanation:
The small box at the corner of the triangle indicates that the triangle is exactly 90 degrees, or a right angle. In order to solve the expression, you would need to do 40 + x = 90, which would be x = 50