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Jlenok [28]
3 years ago
14

Can someone help me plsssss

Mathematics
1 answer:
Zigmanuir [339]3 years ago
6 0

Answer:

5.375

Step-by-step explanation:

The mean of average represents \frac{sum -of-all-numbers}{total-numbers}. We see that there are a total of 8 numbers, so: \frac{3+7+12+9+3+6+2+1}{8}=\frac{43}{8} =5.375

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Determine the slope of the line that contains the given points <br><br> J(-5, -2), K(5, −4)
Irina-Kira [14]

Answer:

-\frac15

Step-by-step explanation:

Hello!

We can utilize the slope formula to find the slope.

Slope Formula: S = \frac{y_2-y_1}{x_2-x_1}

Remember that a coordinate is written in the form (x,y)

<h3>Find the Slope</h3>
  • S = \frac{y_2-y_1}{x_2-x_1}
  • S = \frac{-4-(-2)}{5-(-5)}
  • S = \frac{-2}{10}
  • S = -\frac15

The slope of the line is -\frac15.

4 0
2 years ago
Read 2 more answers
Major league baseball salaries averaged $1.5 million with a standard deviation of $0.8 million in 1994. suppose a sample of 100
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
Find the slope of the line through each pair of points (-20,-4) and (-12,-10)
Vilka [71]

Answer: -3/4x -19

Use formula y2 - y1

                      x2 - x1

6 0
3 years ago
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When June sits down today to read she notices she is on page 20 of a 200 page book. She decides to read 4 pages of this book eve
Olegator [25]
The answer is b. 60 || 4x10=40, 40+20=60
5 0
3 years ago
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What is the area of the surface cone rounded to the nearest tenth?
EleoNora [17]

Answer:

A = 422.4

i promise it's right :)

4 0
3 years ago
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