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AnnZ [28]
3 years ago
12

a worker in an assembly line takes 8 hours to produce 23 parts. At that rate, how many parts can she produce in 20 hours?

Mathematics
1 answer:
Ulleksa [173]3 years ago
4 0

Answer:460

Step-by-step explanation:

23*20=460

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What expression is equivelent to 8-5(3x-7)
steposvetlana [31]

8 - 5(3x - 7)

8 - (5.3x - 5.7)

8 - (15x - 35)

8 - 15x + 35

43 - 15x

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8. The figure shows a barn that Mr. Fowler is building for his farm. Find the Volume
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Answer:

The answer

Step-by-step explanation:

The Volume of the barn is 40,000 ft

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3 years ago
What is the perimeter of a triangle with side 14in 8in and 16in in length
iris [78.8K]
38 14+8+16 To get perimeter add all sides
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3 years ago
A Ferris Wheel 22.0m in diameter rotates once every 12.5s. What is the ratio of a persons apperenet weight to her real weight (a
AnnZ [28]
  <span>Acceleration of a passenger is centripetal acceleration, since the Ferris wheel is assumed at uniform speed: 
a = omega^2*r 

omega and r in terms of given data: 
omega = 2*Pi/T 
r = d/2 

Thus: 
a = 2*Pi^2*d/T^2 

What forces cause this acceleration for the passenger, at either top or bottom? 

At top (acceleration is downward): 
Weight (m*g): downward 
Normal force (Ntop): upward 

Thus Newton's 2nd law reads: 
m*g - Ntop = m*a 

At top (acceleration is upward): 
Weight (m*g): downward 
Normal force (Nbottom): upward 

Thus Newton's 2nd law reads: 
Nbottom - m*g = m*a 

Solve for normal forces in both cases. Normal force is apparent weight, the weight that the passenger thinks is her weight when measuring by any method in the gondola reference frame: 
Ntop = m*(g - a) 
Nbottom = m*(g + a) 


Substitute a: 
Ntop = m*(g - 2*Pi^2*d/T^2) 
Nbottom = m*(g + 2*Pi^2*d/T^2) 

We are interested in the ratio of weight (gondola reference frame weight to weight when on the ground): 
Ntop/(m*g) = m*(g - 2*Pi^2*d/T^2)/(m*g) 
Nbottom/(m*g) = m*(g + 2*Pi^2*d/T^2)/(m*g) 

Simplify: 
Ntop/(m*g) = 1 - 2*Pi^2*d/(g*T^2) 
Nbottom/(m*g) = 1 + 2*Pi^2*d/(g*T^2) 

Data: 
d:=22 m; T:=12.5 sec; g:=9.8 N/kg; 

Results: 
Ntop/(m*g) = 71.64%...she feels "light" 
Nbottom/(m*g) = 128.4%...she feels "heavy"</span>
7 0
3 years ago
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On number 4, how do you figure out if it's an enlargement or a reduction?
aalyn [17]
A and C is enlargement
B,D,E is reduction
7 0
3 years ago
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