The hypotenus square is equivalent to the sum of the square of base and perpendicular.
        
                    
             
        
        
        
Answer:
D. for the first one and B. for the second one i think 
 
        
             
        
        
        
Answer:
 y = 3^(x + 1).
Step-by-step explanation:
Here the y values are increasing by a factor 3  and when x = 0 y = 3,
so  y =  (3)^1 when x = 0  - that is y = (3)^(0 + 1)  = 3.
So y = 3^(x + 1)  is the rule.
Check: when x = -2,  y = 3^(-2+1) = 3 ^-1 = 1/3.
When x = 1, y = 3(1+1) = 3^2 = 9.
 
        
             
        
        
        
Answer:
   $1876.31
Step-by-step explanation:
The present value can be found using the compound interest formula.
<h3>Present value</h3>
The formula for the future value of an investment of P earning annual interest rate r compounded n times per year for t years is ...
   FV = P(1 +r/n)^(nt)
Filling in the known values gives ...
   4000 = P(1 +0.085/4)^(4·9) = P(1.02125^36)
Then the amount to be invested is ...
   P = 4000/1.02125^36 ≈ 1876.31
The present value is $1876.31.
 
        
             
        
        
        
I would say 270 because : 30 times 9 is 270.