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Wewaii [24]
2 years ago
7

Which constant number would be an to both sides of the equation rn order to complete the square for the quadratic function 1=x^2

-6x
Mathematics
1 answer:
AnnZ [28]2 years ago
8 0

Answer:

k = 9

Step-by-step explanation:

Given

1= x^2 - 6x

Required

The perfect number

The coefficient c of x in the above equation is:

c = -6

Divide by 2

c/2 = -3

Square both sides

(c/2)^2 = 9

Hence, the constant to add is:

k = 9

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Two forces with magnitudes of 100 and 50 pounds act on an object at angles of 50° and 160°, respectively. Find the direction and
shusha [124]
Forces in direction x:
 
fx1 = 100 * cos (50) = 64.28
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 Forces in direction y:
 
fy1 = 100 * sine (50) = 76.60
 fy2 = 50 * sine (160) = 17.10
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f = root (fx ^ 2 + fy ^ 2)
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theta = atan (fy / fx)
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 theta = 79.55 degrees
 Answer:
 
The direction and magnitude of the resultant force are:
 
f = 95.28 pounds at theta = 79.55 degrees
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