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enot [183]
3 years ago
6

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Mathematics
2 answers:
MrRa [10]3 years ago
8 0

Answer:

b. 5 × 5 × 8

Step-by-step explanation:

"...the total area is five feet × five feet times eight"

Equation:

(5 × 5) × 8

Simply remove brackets:

5 × 5 × 8

Vinil7 [7]3 years ago
4 0

Answer:

B. 5 × 5 × 8

Step-by-step explanation:

Each of the boards have an area of 25. You have 8 of them.

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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;

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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
Phillip put together 981 pieces of a puzzle. About how many pieces did he put together? Round to the nearest thousand .
s344n2d4d5 [400]
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To add fractions without the common denominator, you have to make them equal so

1/4 x 5 = 5/20

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3 0
3 years ago
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