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Mathematics, 16.06.2021 16:10 amohammad6

A figura ao lado é a representação de um alvo usado em um jogo de dardos. A região central vale 10 pontos. A região intermediária vale 5 pontos e o anel externo vale 3 pontos. A região fora do alvo vale 0 pontos. Se o dardo atingir a linha, a pontuação será a média dos pontos das duas regiões. Diego foi o primeiro jogador a participar. A figura ao lado mostra o resultado de 4 dardos lançados por ele. Calcule a pontuação de Diego no jogo. Em seguida, escreva e justifique todas as pontuações que Diego poderia ter tirado nesse jogo ao lançar 4 dardos.

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Answers: 1
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Answer from: Quest

geometric series converge the common ratio r has magnitude less than one.

|r| <  1

which is equivalent to

 -1 <  r <  1

for the example we need

|2-x| < 1

-1 < 2-x   and 2-x < 1

x < 3 and x > 1

we can write that

answer: 1 < x < 3

1a. common ratio r=250/25=10 > 1     diverges

1b.   r=50/100=1/2 converges

when these converge they converge to

s = \dfrac{a}{1 -r}

where a is the first term.

s = \dfrac{100}{1 - 1/2} = 200

answer: 200

1c. r=-1   so it's not the case that |r| < 1.     diverges

2a. x is the common ratio so we converge when |x|< 1

2b.   r=-10x / -2 = 5x.

we converge when

|5x| < 1

|x| < 1/5

2c.   r=3-2x

-1 < 3-2x and 3-2x < 1

-4 < -2x and 2 < 2x

x < 2 and 1 < x

1 < x < 2

2d. [/tex] r=-48x^3/12 = 4x^3[/tex]

|4x^3| < 1

|x^3| < \frac 1 4

|x| < 4^{-1/3}

 |x| < \frac 1 2 \sqrt[3]{2}

Could someone solve these with work?
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Answer from: Quest

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x

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Answer from: Quest

step-by-step explanation:

graph using a few selected

x         y

   

-1       15

0         6

1         2.4

2       0.96

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A figura ao lado é a representação de um alvo usado em um jogo de dardos. A região central vale 10 p...
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