Answer:
A = x⁵ + 13x³ - 9x² + 40x - 72   
Step-by-step explanation:
The formula for the area of a rectangle is length X width, or A = lw.
Substitute the equations for the sides into the formula:
A = lw
A = (x² + 8)(x³ + 5x - 9)      <= use the distributive property
A = x⁵ + 5x³ -9x² + 8x³ + 40x - 72   <= collect like terms
A = x⁵ + 13x³ - 9x² + 40x - 72
 
        
             
        
        
        
She sold 2592 pears. If 2592/3=864 then when the total of pears and apples are added it should equal 3,456
2592+864=3456
 
        
                    
             
        
        
        
Answer:
B & D
Step-by-step explanation:
B & D
 
        
                    
             
        
        
        
Well the angle is acute at the 3 it would be a right angle so I'm guessing it's 30 degrees but if I'm wrong u could use a protractor to find the angle of degrees
        
                    
             
        
        
        
Answer:
∠BAC = 105°
Step-by-step explanation:
2(5x) = 9x+21
10x = 9x+21
reduce:
x = 21
∠BAC = 5x = 105°