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Triss [41]
3 years ago
12

Please help !!

Mathematics
1 answer:
olga2289 [7]3 years ago
4 0
If you have learned how to find the line of best fit manually, then you can do it that way. Perhaps you may want to just find a line that can connect at least two of the points and I believe that that line will be able to represent the other points because, in general, the points are pretty close to one another. 

If you don't want to do it manually and have a graphing calculator (which I recommend) then you can use that to find the line of best fit (and if you want then you can see how precise your points are with your r^2 value). Or there is a website (http://illuminations.nctm.org/Activity.aspx?id=4186), which you can use to help you to find the equation of that particular line. 

Once you have that done, then you can substitute 2009 for the x value in the equation and then see what y value the equation produces. That will then be your answer :) 
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PLEASe PLEASE HeLP PLEASEEEEE
MA_775_DIABLO [31]

Answer:

option A

x=15/2

Step-by-step explanation:

refer to the above attachment

sorry for the messy writing:^

3 0
2 years ago
Graph the equation y=147x+60
tiny-mole [99]
If you put the equation into graphing calculator online or manual, you can get the graph.

7 0
3 years ago
A math club is researching a golf tournament fund-raiser. it will cost $1,000 to host the tournament. if it rains, the club will
Readme [11.4K]

The expected value of tournament is $2600.

According to the statement

we have given that the tournament will cost $1000 and if it is sunny, it is expected that the club will collect $4,500 from the participants. And we have to find the expected value of a tournament.

So, we know that the

Cost of hosting the tournament : $1,000

If it rains, the club will lose the investment: $ -1,000

If it is sunny, the club will collect $4,500 ;

From all this the profit they will get

profit: 4,500 - 1000 = 3,500

And

There is a chance of 20% then

The club will loss the investment is

-1000*20 = -200

And

Effect on their profit if there is a rain then

3500*80 = 2800

then

The expected value of tournament is 2800-200=2600.

So,The expected value of tournament is $2600.

Learn more about Expected value here brainly.com/question/15858152

#SPJ4

7 0
1 year ago
Someone help me with this question
Savatey [412]
It’s b because the number 8 on top of the fraction’s an exponent meaning that u times the amount of number 8 times but for both of the numerator and denominator
5 0
3 years ago
A cross-country skier reaches the 3-km mark of a race in 15 min and the 12-km mark 45 min later. Find the speed of the skier.
musickatia [10]

Answer:

3 km every 15 mins

step-by-step explanation:

3*4==12

15+15+15= 45

4 0
3 years ago
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