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4 years ago

An endpoint of a line segment is (4,5) and the midpoint of the line segment is (3, -2). Find the other endpoint.

Mathematics

1 answer:

Makovka662 [10]4 years ago

7 0

Answer:

(2,-7)

Step-by-step explanation:

$(4 + x) \div 2 = 3 \\ 4 + x = 6 \\ x = 2$

$(5 + y) \div 2 = - 2 \\ 5 + y = - 4 \\ y = - 7$

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andreev551 [17]

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3 years ago

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The number 2.31 x 10 to the power of x is 2,200 times greater than 1.05 x 10 to the power of y.

Goshia [24]

Answer:

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3 years ago

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tia_tia [17]

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3 years ago

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Please help. 7. 2 × 5. 28

mr_godi [17]

Answer:

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Step-by-step explanation:

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2 years ago

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Final exam scores are normally distributed with a mean of 74 and a standard deviation of 6. Approximately, what percentage of fi

notka56 [123]

Answer:

81.86%

Step-by-step explanation:

We have been given that final exam scores are normally distributed with a mean of 74 and a standard deviation of 6.

First of all we will find z-score using z-score formula.

$z=\frac{x-\mu}{\sigma}$

$z=\frac{68-74}{6}$

$z=\frac{-6}{6}=-1$

Now let us find z-score for 86.

$z=\frac{86-74}{6}$

$z=\frac{12}{6}=2$

Now we will find P(-1<Z) which is probability that a random score would be greater than 68. We will find P(2>Z) which is probability that a random score would be less than 86.

Using normal distribution table we will get,

$P(-1$