Answer:
30°
Step-by-step explanation:
∠A + ∠B + ∠C = 180
∠B = ∠A + 20
∠C = 2 * ∠B
<A + (∠A + 20) + (2 * ∠B) = 180
<A + (∠A + 20) + (2 * (∠A + 20)) = 180
<A + (∠A + 20) + 2∠A + 40 = 180
4∠A + 60 = 180
4∠A = 120
∠A = 30
 
        
                    
             
        
        
        
The correct answer is y= 0.513(1.833)^x 
Explain 
We will use the equation on this form 
Y=ab^x 
Let’s us plug in the coordinates of first point 
(X, y) , ( 9, 120) 
We will have 
Y=ab^x 
120= ab^9
Our equation for a will be 
Ab^9 = 120 
ab ^9 / b^9 = 120/ b^9 
a = 120/ b^9
So will have 
Y= 120/ b^9 • b^x 
Then we will plug in coordinates for the second point 
( x,y) = ( 10, 220) 
We will have 
Y= 120/b^9 • b^x
220 = 120/b^9 • b^10-9 
220= 120b 
Divide both side by 120 
B= 11/6 
B= 1.833333 = 1.833 
Let’s plug in the value b=11/6 to our equation for a 
A= 120/b^9
A= 120/ 11/6^9
A= 120/11^9/6^9
A=120 • 6^9 / 11^9
= 0.51285 which equal to 0.513 
So therefore the answer is 
Y= 0.513(1.833)^x 
I hope this help you 
:D
        
             
        
        
        
Answer:
Its 41 mph and 55 mph
Step-by-step explanation:
 
        
             
        
        
        
Answer:
0$
Step-by-step explanation:
If he spent all of his money, than he has nothing left.