Answer:
Formula for percent change is C = {x_2 - x_1}/{x_1}  
C	=	relative change
x_1	=	initial value
x_2	=	final value
Step-by-step explanation:
 
        
                    
             
        
        
        
AB=h can be found with 
tan 60° =AB / AC, and AB=h= tan60° x AC
h= 14*  1.73=24.24
        
             
        
        
        
Answer:
10 Girls
Step-by-step explanation:
Total number of girls in Alden Middle school= 25 girls
Percent of girls play for travel team= 40%
We have to find the numbers of girls who play for middle school team
 Numbers of girls who play for middle school team= 25 ×
 Numbers of girls who play for middle school team=25 ×
 Numbers of girls who play for middle school team=10
Hence the number of girls play for travel team= 10 girls.
Hence, the correct answer is 10.
 
        
             
        
        
        
Answer:
x=7 (if your teacher cares it could + or - 7) 
Step-by-step explanation:
Okay, since it's a 90 degree triangle you can use the Pythagorean theorem
 ( a^2 + b^2 = c^2)
Since it's an isosceles triangle the other side is x because it's the same value.
x^2 + x^2= (7 )^2
 )^2
Add the left side
2x^2= 7^2 +  ^2 roots and square roots cancel each other out
^2 roots and square roots cancel each other out
So -> 2x^2= 49 x 2 =98
just solve for x.
x^2 = 98/2 
x^2= 49
Square root both sides
x= 7