Answer:
25% of 200 is 50
Step-by-step explanation
40% of a number is 80
.40 * n = 80
Divide each side by .4
.40 n/.4 = 80/.4
n = 200
The number is 200
Now lets find 25 percent of that number
.25 * 200 = 50
 
        
             
        
        
        
Answer:
cos(71)
Step-by-step explanation:
Since 19° is less than 90, we can express this in terms of confunction.
sin(θ) = cos(90-θ)
sin(19) = cos(90-19)
sin(19) = cos(71)
 
        
             
        
        
        
In an hour there are 60 minutes.
6:38 PM + 22minutes = 7 PM
From 7 PM to 7:23 PM there are 23 minutes
So, (23 + 22) minutes = 45 minutes.
        
                    
             
        
        
        
Answer:
Surface area of square pyramid shown in picture:
A = area of 4 triangles + area of square
   = 4 x 4 x 3 x (1/2) + 3 x 3
   = 33 (ft)
=> Option 4 (last one) is correct
Hope this helps!
:)