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MrRa [10]
3 years ago
8

.

Mathematics
1 answer:
kipiarov [429]3 years ago
5 0
Time from October 5 to January 16
T=26+30+31+16=103 days
I=1870*0.11*103/365=58.05
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You are choosing a song for your dance recital. Song A has 11 beats in 10 seconds. Song B has 7 beats in 6 seconds. Which song h
Fittoniya [83]
Song A has 1 .10 beats/second and song B has 1.16 beats/second so it is song a.
8 0
2 years ago
A regression analysis between weight (y in pounds) and height (x in inches) resulted in the following least squares line: ŷ = 13
Lunna [17]

Answer:

y=6x +135

And for this case the interpretation for the slope would be that for every unit that the height in inches increase then the weight in pounds increase 6 units.

For the intercept of 135 represent the amount initial amount of weight for the scale.

Step-by-step explanation:

We assume that they use least squares in order to create the regression equation

For this case we need to calculate the slope with the following formula:

m=\frac{S_{xy}}{S_{xx}}

Where:

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}

With these we can find the sums:

And the slope would be:

m=6

The means for x and y are given by:

\bar x= \frac{\sum x_i}{n}

\bar y= \frac{\sum y_i}{n}

And we can find the intercept using this:

b=\bar y -m \bar x

For this case we know that the line adjusted is:

y=6x +135

And for this case the interpretation for the slope would be that for every unit that the height in inches increase then the weight in pounds increase 6 units.

For the intercept of 135 represent the amount initial amount of weight for the scale.

3 0
3 years ago
PLEASE ANSWER THIS ASAP !!!!!
77julia77 [94]
The answer would be 6 i think
4 0
3 years ago
Kevin can travel 22 1/2 miles in 1/3 of an hour what is his average speed in miles per hour
Natasha_Volkova [10]

\frac{22.5}{ \frac{1}{3}  \times 60}
4 0
3 years ago
A 2-column table with 5 rows. The first column is labeled hours spent exercising with entries 2, 4, 3, 4, 5. The second column i
slamgirl [31]

Answer:

second answer or B

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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