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πr^2 = area
Half the diameter to get the radius 
Substitute the values in:
area = 3.142 x (7)^2
area = 153.958 cm^2
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Answer:
9
Step-by-step explanation:
Slope is the same as coefficient of x
From the equation
3x+4y=12
Y=(-3/4)x+3
The slope for this eqn is -3/4
For this equation
Px+12y=30
12y=-p+30
Y= (-p/12)x +30/12
The slope is -p/12
To get p
-p/12=-3/4
P=9
 
        
             
        
        
        
Answer:
43/40x^3-5x^5+2
Step-by-step explanation: