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pickupchik [31]
3 years ago
7

Please help! Find the value of x for which ABCD must be a parallelogram.

Mathematics
2 answers:
Thepotemich [5.8K]3 years ago
7 0

Answer:

5

Step-by-step explanation:

cause

angle c and angle a are alternate angle and alternate angle are always equal so 5X-8=2x+7

5x-2x=7+8

3x=15

or x=5

igor_vitrenko [27]3 years ago
5 0

Answer:

x=5

Step-by-step explanation:

5x-8=2x+7

5x-2x=7+8

3x=15

X=15/3

x=5

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seropon [69]

Answer: The probability that the avg. salary of the 100 players exceeded $1 million is approximately 1.

Explanation:

Step 1: Estimate the standard error. Standard error can be calcualted by dividing the standard deviation by the square root of the sample size:

SE=\frac{0.8}{\sqrt{100}}=\frac{0.8}{10} = 0.08

So, Standard Error is 0.08 million or $80,000.

Step 2: Next, estimate the mean is how many standard errors below the population mean $1 million.

\frac{1 - 1.5}{0.08}

=-6.250

-6.250 means that $1 million is siz standard errors away from the mean. Since, the value is too far from the bell-shaped normal distribution curve that nearly 100% of the values are greater than it.

Therefore, we can say that because 100% values are greater than it, probability that the avg. salary of the 100 players exceeded $1 million is approximately 1.

5 0
3 years ago
Please help me with this
lawyer [7]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Identify the slope and the y-intercept of the following line!<br> y=-5+17/8x
hichkok12 [17]

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Verdich [7]

Answer:

Step-by-step explanation:

two step equation

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-----------

check

7.5 - 5/2 = 5

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