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3 years ago

C.J walks 8 miles in 3 hours. At what unit rate does C.J walk

Mathematics

1 answer:

lana [24]3 years ago

7 0

Answer:

8/3 miles over 8miles

Step-by-step explanation:

i guessed and got it right

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If x has a mean of 17.2 g and a standard division of 14.0 g and y has a mean of 23.5 g and a standard division of 16.4 g and the

dimulka [17.4K]

The least squares regression line is y=0.6831x+11.25

Step-by-step explanation:

LSRL is the the Least Squares Regression Line.The formula for regression line is y=mx+b where m is the slope of the line and b is the y-intercept value of the line.

First find the slope, m of the line from the means and standard deviations given

x has a mean of 17.2 g and a standard deviation of 14.0 g

y has a mean of 23.5 g and a standard deviation of 16.4 g

The correlation coefficient in both cases is 0.83, hence the slope m is given by;

m=r(Sy/Sx) where m is the slope of the line, Sy is standard deviation of y values, Sx is standard deviation of x values and r is the correction coefficient.

m= 0.5 * 23.5/17.2 =0.6831

Find the value of b, the y-intercept

b=Y-mX where X and Y are the mean values for x and y respectively

b=23.5-0.6831*17.2

b=23.5-11.75=11.25

The LSRL is y=0.6831x+11.25

Learn More

Least Squares regression Line : brainly.com/question/4090838

Keyword : standard deviation, least square regression line

#LearnwithBrainly

3 0

3 years ago

Really need help and ALL CAPS NO SPACES

scZoUnD [109]

Step-by-step explanation:

1. $x+6 + 3x + 2 + 2x + 4$

Combine Like Terms:

Answer: $6x+12$

2. $6x + 4 + 7x + 1 + 5x + 7$

Combine Like Terms:

Answer: $18x+12$

3. $4x-3 + 3x + 5x - 6$

Combine Like Terms:

Answer: $12x-9$

4. $6x - 8 + 3x + 7 + 5x - 3$

Combine Like Terms:

Answer: $14x-4$

Your code is, GBIH

4 0

2 years ago

fran found this expression in her cookbook. 1/3 divided by 2.write a scenario that explains the expression and solve

mars1129 [50]

This may help:

There are $\frac{1}{3}$ gallons of lemonade.

Two friends share the lemonade.

What fraction of the lemonade does each friend receive?

To solve you do kcf or keep change flip.

You keep $\frac{1}{3}$ and change division to multiplication.

Then $\frac{2}{1}$ is changed to $\frac{1}{2}$

The answer would be $\frac{1}{6}$

Hope That Helps!

4 0

2 years ago

Can y’all help me on question six?!

Anna [14]

Answer:

c 2:1

Step-by-step explanation:

8/4=2

4/4=1

8:4 simplified is 2:1

3 0

2 years ago

Will give brainliest if correct.

Nataly [62]

Answer:

The answer would be, 81cm.

Step-by-step explanation:

36÷4=9

9×9=81

8 0

3 years ago

Read 2 more answers