Area=pir^2
diameter/2=radius
diameter=9
d/2=9/2=4.5=r
area=pi4.5^2
area=pi20.25
aproxpi=3.14
area=63.585
round hundreth
area=63.59
answer is 63.59cm^2
        
                    
             
        
        
        
Answer: 25, 90 ,90 
Step-by-step explanation:
One angle on a paralel = 155 
=> x+ y + z + 155 = 360 
   x + y + z = 205    ; x + y ; y + z ; x + z = 180 
x + y = 180 
=> Z = 205 - 180 
     Z = 25  Degree 
x = y = 90 degree
Mark me as Brainliest pls ! Tysm ! 
 
        
             
        
        
        
Answer:
 one is correct.
Step-by-step explanation:
because it have one solution when you graph it 
 
        
                    
             
        
        
        
Answer:   x ≥ 6
<u>Step-by-step explanation:</u>
12 less <u>than</u> 5 times a number ≥ 6 more <u>than</u> twice the number
                     5x - 12                    ≥                        2x + 6
Note: the word "than" switches the order of the terms.
 5x - 12 ≥ 2x + 6
<u>-2x  +12</u>  <u>-2x +12 </u>
 3x         ≥       18
<u>÷3         </u>     <u>    ÷3 </u>
    x         ≥       6
Graph: 6 -----------→   the dot is closed (filled in) since it is "equal to"