The answer is 8.
half of 16 is 8
Answer:
x = 5
Step-by-step explanation:
4x + 2y + z = 24
2x - 3y - z = 2
5x + y + 2z = 21
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Eliminate z
Add the 1st and 2nd eqn
4x + 2y + z = 24
2x - 3y - z = 2
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6x - 1y = 26 eqn A
Multiply the 2nd eqn by 2, then add the 3rd.
4x - 6y -2z = 4
5x + y + 2z = 21
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9x - 5y = 25 eqn B
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Now you have 2 eqns in 2 unknowns, not 3.
Multiply eqn A by 5 and subtract eqn B.
30x - 5y = 130 eqn A times 5
9x - 5y = 25 eqn B
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21x = 105
x = 5
Answer:
X = [-5 -1 2 1] - [-1 -2 4 8] = [-4 1 -2 -7]
Step-by-step explanation:
Chord AB and Chord CD are equidistant from the center of the circle.
![\therefore \: chord \: AB \cong chord \: CD \\ \\ \therefore \: \frac{1}{2} \: \: AB \cong \frac{1}{2} \: \: CD \\ \\ \therefore \: EB = \frac{1}{2} \: \times 18\\ \\ \huge \purple{ \boxed{\therefore \: EB =9}}](https://tex.z-dn.net/?f=%20%5Ctherefore%20%5C%3A%20chord%20%5C%3A%20AB%20%5Ccong%20chord%20%5C%3A%20%20CD%20%5C%5C%20%20%5C%5C%20%20%5Ctherefore%20%5C%3A%20%20%5Cfrac%7B1%7D%7B2%7D%20%5C%3A%20%20%5C%3A%20AB%20%5Ccong%20%5Cfrac%7B1%7D%7B2%7D%20%5C%3A%20%5C%3A%20%20CD%20%20%5C%5C%20%20%5C%5C%20%5Ctherefore%20%5C%3A%20EB%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%5C%3A%20%20%5Ctimes%2018%5C%5C%20%20%5C%5C%20%20%5Chuge%20%5Cpurple%7B%20%5Cboxed%7B%5Ctherefore%20%5C%3A%20EB%20%3D9%7D%7D)
Answer:
Im assuming you meant 43 because if you did x=5
Step-by-step explanation:
8 times 5 is 40 and ifyou add 3 it equals 43