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katrin [286]
3 years ago
8

P, Q, R and S are points on a circle. PXR and QXS are straight lines. PX = QX. SPX is 29 degrees, QXP is 48 degrees, XQP and XPQ

are both 66 degrees and RQX is 29 degrees. Is PR the diameter of the circle? Answer 'Yes' or 'No' and give a reason for your answer.

Mathematics
1 answer:
weqwewe [10]3 years ago
6 0
The answer is yes........
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F(x) = ax + b
Usa-se a informacao dada para criar um sistema de 2 equacoes com 2 variaveis. Resolve-se o sistema pare determinar os valores de a e b.Uma vez que se sabe os valores de a e b, escreve-se a funcao f com os valores de a e b. Finalmente calcucla-se f(3) usando a funcao f.


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a(1) + b = -1

O sistema de equacoes e o seguinte.
Resolvemo-lo par adicao. 
A variavel a e eliminada.



-a + b = 3
a + b = -1

2b = 2

b = 1

a + 1 = -1

a = -2

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f(3) = -5
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3 years ago
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