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3 years ago

What is the length of the line segment BC

Mathematics

2 answers:

Roman55 [17]3 years ago

8 0

14 because the line is right across the one that is labeled 14.

Blizzard [7]3 years ago

5 0

I don't know you have to use a measuring tool to figure it out ruler helps sorry try a ruler of a angle scale

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Alice searches for her term paper in her filing cabinet, which has several drawers. She knows thatshe left her term paper in dra

katen-ka-za [31]

You made a mistake with the probability $p_{j}$ , which should be $p_{i}$ in the last expression, so to be clear I will state the expression again.

So we want to solve the following:

Conditioned on this event, show that the probability that her paper is in drawer $j$ , is given by:

(1) $\frac{p_{j} }{1-d_{i}p_{i} } , if j \neq i,$ and

(2) $\frac{p_{i} (1-d_{i} )}{1-d_{i}p_{i} } , if j = i.$

so we can say:

$A$ is the event that you search drawer $i$ and find nothing,

$B$ is the event that you search drawer $i$ and find the paper,

$C_{k}$ is the event that the paper is in drawer $k, k = 1, ..., n.$

this gives us:

$P(B) = P(B \cap C_{i} ) = P(C_{i})P(B | C_{i} ) = d_{i} p_{i}$

$P(A) = 1 - P(B) = 1 - d_{i} p_{i}$

Solution to Part (1):

if $j \neq i$ , then $P(A \cap C_{j} ) = P(C_{j} )$ ,

this means that

$P(C_{j} |A) = \frac{P(A \cap C_{j})}{P(A)} = \frac{P(C_{j} )}{P(A)} = \frac{p_{j} }{1-d_{i}p_{i} }$

as needed so part one is solved.

Solution to Part(2):

so we have now that if $j$ = $i$ , we get that:

$P(C_{j}|A ) = \frac{P(A \cap C_{j})}{P(A)}$

remember that:

$P(A|C_{j} ) = \frac{P(A \cap C_{j})}{P(C_{j})}$

this implies that:

$P(A \cap C_{j}) = P(C_{j}) \cdot P(A|C_{j}) = p_{i} (1-d_{i} )$

so we just need to combine the above relations to get:

$P(C_{j}|A) = \frac{p_{i} (1-d_{i} )}{1-d_{i}p_{i} }$

as needed so part two is solved.

8 0

4 years ago

The energy magnitude M of an earthquake can be modeled by the equation

const2013 [10]

Answer: magnitude of an earthquake with an energy release of 7.079 X 10^26 =8

Step-by-step explanation:

Given that the magnitude M of an earthquake can be expressed by the equation

M=(2/3)log E - 9.9

Given that Energy release , E=7.079 X 10^26

Magnotude , M=(2/3)log E - 9.9

=2/3 log7.079 X 10^26 -9.9

2/3 x 2.8499719 -9.9

17.8999813 -9.9

=7.9999

rounded to 8 magnitude

6 0

3 years ago

What is the value of x in the equation -2.4x = 8.4?<br> -20.16<br> -3.5<br> 3.5<br> 20.16

ololo11 [35]

Answer:

Step-by-step explanation:

x = 8.4/-2.4 = -84/24 = -3.5

3 0

3 years ago

Read 2 more answers

Cameron has a rectangular cooler to bring to a picnic. The cooler is 15 inches long, 12 inches wide, and 20 inches high. What is

taurus [48]

Answer:

Step-by-step explanation:

5 0

3 years ago

Find the value of x. Round your answer to the nearest whole number.

worty [1.4K]

Answer:

x = 49.45839812°

Step-by-step explanation:

Formula:

$arcos( \frac{adjacent}{hypotenuse})$

Replace with given values, so

$arcos ( \frac{6.5}{10})$

Put in calculator, remember it is is DEGREES not RADIANS

Answer:

$x = 49.45839812$

7 0

3 years ago