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photoshop1234 [79]
3 years ago
8

A ship sails north for 2 hours, traveling a total of 15 miles. Then the ship turns south and travels 6 miles in an hour.

Mathematics
1 answer:
ch4aika [34]3 years ago
3 0

Answer:

3 miles per hour

Step-by-step explanation:

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En considérant que DE est
skad [1K]

Answer:

si

Step-by-step explanation:

5 0
3 years ago
Suppose the line of best fit is being found for some data points that have an r-value of 0.657. If the standard deviation of the
oksian1 [2.3K]
We are given a line with the following data:

r-value = 0.657 (r)
standard deviation of x-coordinates = 2.445 (Sx)
standard deviation of y-coordinates = 9.902 (Sy)

We are asked to find the slope of the line up to 3 decimal places.

To find the slope of the line, based on the data that we have, we can use this formula:

slope, b = r * (Sy / Sx) 

substitute the values to the formula:

b = 0.657 * ( 9.902 / 2.445 )

Solve for the b.

Therefore, the slope of the line is 

b = 2.66078, round off to three decimal places:

b = 2.661 is the slope of the line. 
5 0
3 years ago
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A 100 - foot fence is used to enclose a rectangular land plot. If the area of the land plot is 456 square feet, which equation c
quester [9]

Answer:

x^2-50x+456=0

Step-by-step explanation:

GIVEN: A 100\text{ foot} fence is used to enclose a rectangular land plot. If the area of the land plot is 456\text{ feet}^2.

TO FIND: equation to determine the length x of the land plot.

SOLUTION:

total length of fence =100\text{ foot}

let the width of land plot be y

perimeter of plot =2(x+y)=100

                            x+y=50

area of rectangular plot =\text{length}\times\text{breadth}

                                       xy=456

                                      y=\frac{456}{x}

putting value of y

x+\frac{456}{x}=50

x^2-50x+456=0

Hence required equation to get length x of land plot is x^2-50x+456=0

on solving

x=38,12

possible length of land plot is 38\text{ foot} and 12\text{ foot}

6 0
3 years ago
Can someone answer this for me?
Sophie [7]

Answer:

D 26

Step-by-step explanation:

154+154=308

308-360=52

52 divided by 2

=26

7 0
3 years ago
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Plz help ❤️ 2 questions worth 13 points! Thanks!! :)))
bazaltina [42]

Question 1 might be B. 0.3

Question 2 might be D.TW, TM, CW, CM, HW, HM

I'm not 100% sure though

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