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marta [7]
4 years ago
12

arius flipped a coin 500 times and it landed heads up 300 times. What is the relative frequency of the coin landing heads up bas

ed on the results of this experiment?
Mathematics
1 answer:
guajiro [1.7K]4 years ago
3 0

Answer:

3/5

Step-by-step explanation:

500 time number of coin flipped =500

pro.of relative freq.of head =300

relative frequency =300/500

=3/5

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Uma função f é dada por f(x) = ax + b, em que a e b são números reais. Se f(–1) = 3 e f(1) = –1, determine o valor de f(3).
ale4655 [162]
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.


f(-1) = 3

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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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Escrevemos a funcao f usando os valores the a e b calculados..



f(x) = -2x + 1

f(3) = -2(3) + 1 = -6 + 1 = -5

f(3) = -5
6 0
3 years ago
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