Answer:
C
Step-by-step explanation:
I know is C let em have brainliest
 
        
                    
             
        
        
        
Answer:
10
Step-by-step explanation:
sin30° =  =
 = 
 
        
             
        
        
        
Answer:
392.5 in²
Step-by-step explanation:
This figure is consists of a trapezium and a rectangle.
So, to find the total area of the figure you have to find the area of the trapezium and the rectangle separately  and add them together.
Let us find now.
<u>Area of the Trapezium</u>
Area =  × ( sum of the parallel sides ) × height
 × ( sum of the parallel sides ) × height
Area =  × (  9 + 20 ) × 5
 × (  9 + 20 ) × 5
Area =  × 29 × 5
 × 29 × 5
Area =  × 145
 × 145
Area = 72.5 in²
<u>Area of the rectangle</u>
Area = Length × Width
Area = 20 × 16
Area = 320 in²
<u>Total area of the figure</u>
Total area = Area of the trapezium + Area of the rectangle
Total area = 72.5 in² + 320 in²
Total area = 392.5 in²
Hope this helps you :-)
Let me know if you have any other questions :-)
 
        
             
        
        
        
Compound interest formula = a=P(1+r/n)^nt
P= lump sum to deposit (solving for)
A= amount accumulated over the entire time (20000)
n= number of times interest is compounded annually (1)
r= rate of interest (0.82)
T= total number of years (15)
20000=P(1+0.082/1)^1*15
20000=P(1.082)^15
20000=P(3.26143638)
20000/3.26143638=P
P=$6132.2674
        
                    
             
        
        
        
Answer:
true
Step-by-step explanation:
If the standard deviation is increased and the sample size and confidence level stay the same, then the margin of error will also be increased