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lozanna [386]
3 years ago
5

Wat is linear regression

Mathematics
1 answer:
Leno4ka [110]3 years ago
5 0
Linear regression - the relation between variables when the regression equation is linear: e.g., y = ax + b
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The sum of two numbers is 40 and their difference is 6.5, what is their product? show work please
Finger [1]
Let b>a, 

a+b=40 so we can say a=40-b

We are told that b-a=6.5, using a found above in the equation gives us:

b-(40-b)=6.5

b-40+b=6.5

2b-40=6.5

2b=46.5

b=23.25, and since  a=40-b

a=40-23.25

a=16.75

So a=16.75 and b=23.25

check...

16.75+23.25=40, 40=40

23.25-16.75=6.5, 6.5=6.5

4 0
2 years ago
A bullet train can travel at 170 miles per hour.Will a graph representing distance in mile compared to time in hours show a prop
Eddi Din [679]
Yes the graph will show a proportional relationship
6 0
2 years ago
What is the value of x?
Marysya12 [62]
A triangle always adds up to 180 degrees:

Therefore, 48 + 6x + 9x-3 = 180

Solve for x:

180 - 45 = 15x
135 = 15x

x = 9 degrees
4 0
3 years ago
$12 per 45 minutes is how much an hour? (I will give good rating to anyone who answers)
uysha [10]

Answer:

$16

Step-by-step explanation:

1. Simplify 12/45 which is now 4/15. Now we know $4 is made every 15 minutes.

2. Divide into 60(minutes) by the the 15. So 60÷15=4. Now we the number of times 15 can be divided into 60.

3. Multiply the ratio 4/15 by 4/4 to see how much is made in an hour. 4x4/15×4=16/60.

$16 is made in 60 minutes (1 hour).

3 0
2 years ago
How many possible outcomes are there when flipping a coin 9 times?
otez555 [7]
Each time the coin is tossed, there are two possible outcomes. The total number of possible outcomes when 9 tosses are made is given by:
2^{9}=512\ outcomes
3 0
3 years ago
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