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3 years ago

Quiz in genser

1 answer:

5 0

Y result from something being multiplied by X , and the values are always proportional to one another . Notice that putting these points into a ratio of x - value to Y - value result in 1:3 as a simplified version . So , The constant of proportionality is what x is being multiplied by to get y . In this case , it is 3

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You were told that the amount of time lapsed between consecutive trades on the New York Stock Exchange followed a normal distrib

uysha [10]

Answer:

Step-by-step explanation:

Given that that (X) the amount of time lapsed between consecutive trades on the New York Stock Exchange followed a normal distribution with a mean of 15 seconds.

i.e. X is normal with mean = 15 and unknown std deviation $\sigma$

Given that $P(X$

i.e. P( $z$

z=-1.475 (from normal table)

Hence $\frac{13-15}{\sigma}=-1.475\\\sigma = 1.356$

Using this we find P(X>17) = $P(Z>\frac{17-15}{1.356} \\=P(Z>1.475)\\=0.5-0.428\\=0.072$

6 0

3 years ago

Find area of a rectangle with vertices -9,3 -9,-7 -6,-7 and -6,-3

VikaD [51]

4 times 3 equals 12.

3 0

3 years ago

A cross country racer records a time of exactly 4 minutes to complete a race that is a distance of 1,000 meters. What is the rac

lions [1.4K]

Answer:

.24 meters/second

Step-by-step explanation:

6 0

3 years ago

Sarah and her friends pick 3 3/4 pints of blueberries after they ate some of the blueberries only 2 1/3 pints remain how many pi

scoundrel [369]

3 3/4 - 2 1/3

get a common denominator of 12

3 3/4 * 3/3 = 3 9/12

2 1/3 * 4/4 = 2 4/12

3 9/12 - 2 4/12=

1 5/12

Answer: they ate 1 5/12 pints

7 0

3 years ago

Find the slope of the line that passes through (-2, 8) and (-10, 14)

vesna_86 [32]

Hello!

To find the slope we divide the difference of the y-values by the difference of the x-values as shown below.

$\frac{14-8}{-10+2} = -\frac{6}{8} = -\frac{3}{4}$

The slope of our line is -3/4.

I hope this helps!

8 0

4 years ago

Read 2 more answers