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chubhunter [2.5K]
3 years ago
6

HELP ME PLEASE, ITS DUE TOMORROW AND I AM SO CONFUSED

Mathematics
1 answer:
likoan [24]3 years ago
8 0

Answer:

see image

Step-by-step explanation:

put the points from the table on the graph. Like time is the x and drinks is the y. These are the variables: time and number of drinks. Go over to 11, then up to 20, put a point there, etc. Do this for all five pairs of the numbers in the table. Imagine a line that goes thru the data points. See image. It is a pretty good line for the data. The points come pretty close to the line, where they miss is sort of random and on both sides of the line. This is a good thing. The line goes up, so the correlation is positive. When the line is a good line the correlation coefficient, r is 1 or -1. A bad line that doesn't match the data is smaller decimals like the .5 or -.5

Here its good and positive, so r=1

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What is the circumference of a bicycle tire of 28 inches
sasho [114]
Here, If 28 inches is the diameter then, 
C = π * diameter
C = 3.14 * 28
C = 87.92 in

Now, If the mentioned measurement is the radius, then:
C = 2 * π * r
C = 2 * 3.14 * 28
C = 175.84 in.

Hope this helps!
7 0
3 years ago
Please help, I can't figure out how to set this up. There's supposed to be 2 equations.
Valentin [98]

Hello from MrBillDoesMath

Answer:     + 4/7,   6 (13/14)

Discussion:

Let L be the larger of the two numbers and S the smaller of the two. Then the first sentence translates into this:


-6L - L = -4  =>

-7L = -4        =>          (divide both sides by -7)

L = - (-4)/(-7) = + 4/7       (*)


The second sentence translates to

2 (L + S) = 15  =>               (divide both sides by 2)

(L +S) = 15/2  =>                (subtract L from each side)

S = 15/2 - L = 15/2 - 4/7    (using (*) above)

So

S = 15*7/(2*7) - (4*2)/(7*2)       (combine over common denominator of 14)

S = 105/14 - 8/14 = 97/14 = 6 13/14

Something is crazy here!    While 2(L +S) = 15  -- check it out -- our larger number L ( =4/7) is actually smaller than the S number (6 13/14)!  Maybe I should have called them Y and X, respectively, as you suggested!

Thank you,

Mr. B


7 0
3 years ago
15 4/7 - 11 ⅖=???????
vampirchik [111]

Answer:

mixed fraction= 4 6/35 . exact form= 146/35

Step-by-step explanation:

5 0
4 years ago
Brenna is going on a backpacking trip with her family. They need to hike to their favorite camping spot and set up the camp befo
Nostrana [21]

Answer:

Latest time for start hiking = 4:57 PM

Step-by-step explanation:

Given:

Time of sunset = 9:26 P.M

Time taken for hiking = 3 hours and 3 minutes (03:03)

Time taken for set up = 1 hour and 26 minutes (1:26)

Find:

Latest time for start hiking

Computation:

Latest time for start hiking = Time of sunset - Time taken for set up - Time taken for hiking

Latest time for start hiking = 9:26 - 1:26 - Time taken for hiking

Latest time for start hiking = 8:00 PM - 03:03

Latest time for start hiking = 7:60 - 03:03

Latest time for start hiking = 4:57 PM

6 0
3 years ago
H - ‘ & ‘ 3 g f f .3 ’ 5 w §
Oliga [24]
Some examples of perpendicular lines are the Interstate how it runs side by side with a median in the middle the roads are perpendicular because a lot of them will cross one another in a sharp turn trust me I know, Some more are the studs in the walls of your house, the wheels on your truck, the frame rails on your go cart just look around you if the lines intersect at a right angle then there perpendicular. 
5 0
3 years ago
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