Answer:
B 6.3
Step-by-step explanation:
r = 8
l = 2*3.14*r
l = 50.24
s=l/360*45
s≈6.3
 
        
                    
             
        
        
        
Answer:
´The variance is 10000
Step-by-step explanation:
The variance is defined as the square of standard deviation, consequently it is as follows: 
σ^2=
σ^2=10000
 
        
             
        
        
        
Answer:
m= 8p 
Step-by-step explanation:
you multiple 8 by the number of packages because there are 8 markers in each package.
 
        
                    
             
        
        
        
Answer:
r = 10 , centre = (6, - 2 )
Step-by-step explanation:
the equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k ) are the coordinates of the centre and r is the radius
given
x² - 12x - 60 = - y² - 4y ( add y² + 4y to both sides )
x² - 12x + y² + 4y - 60 = 0 ( add 60 to both sides )
x² - 12x + y² + 4y = 60
using the method of completing the square
add ( half the coefficient of the x and y terms )² to both sides
x² + 2(- 6)x + 36 + y² + 2(2)y + 4 = 60 + 36 + 4
(x - 6)² + (y + 2)² = 100 ← in standard form
with centre = (6, - 2 ) and r =  = 10
 = 10
 
        
             
        
        
        
The total number of acorn squash that the farmer brought to the market = 80
Percentage of acorn squash was less when the day ended = 35%
Then
The amount by which the 
number of acorn squash decreased at the end of the day = (35/100) * 80
                                                                                             = 280/10
                                                                                             = 28
Then
The number of acorn squash left with the farmer = 80 - 28
                                                                               = 52
So from the above deduction, we can easily conclude that the farmer was left with 52 acorn squash at the end of the day.