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CaHeK987 [17]
3 years ago
15

Which of the following functions best describes this graph??

Mathematics
2 answers:
tino4ka555 [31]3 years ago
7 0

Answer:

The correct answer is b

artcher [175]3 years ago
5 0

Answer:

A) y = x² - 8x + 15

Step-by-step explanation:

We can see that the roots of this equation (the x-intercepts) are at x = 3 and x = 5.  Plugging this into factored form gives us

y = (x-r₁)(x-r₂)

y = (x-3)(x-5)

Multiplying, we have

y = (x)(x)-5(x)-3(x)-3(-5)

y = x²-5x-3x--15

y = x²-8x+15

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Genrish500 [490]

Answer:

7

Step-by-step explanation:

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Square root is always dividing by a whole factor :)

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3 years ago
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The newest invention of the 6.431x staff is a three-sided die. On any roll of this die, the result is 1 with probability 1/2, 2
Gwar [14]

Answer:

<h2>The answer is 0.23(approx).</h2>

Step-by-step explanation:

The given die is a three sided die, hence, there are only three possibilities of getting the outcomes.

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From the sequence of 6 independent rolls, 2 rolls can be chosen in ^6C_2 = \frac{6!}{2!\times4!} = \frac{30}{2} = 15 ways.

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In the rest of the 4 sequences, will not be any 3 as outcome.

Probability of not getting a outcome rather than 3 is 1 - \frac{1}{4} = \frac{3}{4}.

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4 0
3 years ago
The ratio of girls and boys in a swimming club was 2:5 .There we’re 20 girls.How many boys were there at the club?
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Answer:

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Rzqust [24]

Answer:

Step-by-step explanation:

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