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attashe74 [19]
2 years ago
8

Solve the system of linear equations by substitution. 8x−13y=0 12x+3=y

Mathematics
1 answer:
Oliga [24]2 years ago
7 0

Answer:

x = - 39/148

y = -6/37

Step-by-step explanation:

substitute the given value of y into the equation to get 8x-13 (12x+3)=0

solve for x to get x= - 39/148

substitute the given value of x into 12x+3=y

12 x (-39/148) + 3 = y

-6/37 = y

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Application of the least squares method results in values of the y-intercept and the slope that minimizes the sum of the squared
alisha [4.7K]

Answer:

The least squares method results in values of the y-intercept and the slope, that minimizes the sum of the squared deviations between the observed (actual) value and the fitted value.

Step-by-step explanation:

The method of least squares works under these assumptions

  • The best fit for a data collection is a function (sometimes called curve).
  • This function, is such that allows the minimal sum of difference between each observation and the expected value.
  • The expected values are calculated using the fitting function.
  • The difference between the observation, and the expecte value is know as least square error.
7 0
3 years ago
Kendra owns a restaurant. She charges $3.00 for 2 eggs and one piece of toast, and $1.80 for one egg and one piece of toast. How
34kurt
Assume E represents the cost of an egg and T represents the cost of one piece of toast.

We can construct two equations :
2E + T = $3.00 - - - - - (a)
E + T = $1.80 - - - - - (b)

Subtract equation b from a:
E = $1.20 (The price of one egg)

To find out the price of one piece of toast, replace the price of one egg in equation b:
T = $1.80 - $1.20 = $0.60 (The price of one piece of toast)

Hope that helps you

7 0
3 years ago
How to write 6/8 as a decimal ?
Korvikt [17]

all have to do is divide the fraction to make it into a decimal ,

6/8= 0.75

6 0
3 years ago
An angle measures 156° less than the measure of its supplementary angle. What is the measure of each angle?
Advocard [28]

Answer:

Angle 1: 168

Angle 2: 12

Explanation:

I did the math! basically, i did 168-156, and got 12. Then i added, 168+12, and got 180. So i know that both angles together make 180 degrees, which is the definition of supplementary angles.

7 0
3 years ago
Plz help quick!!!!!!!!!!!!!!!!!!!!!!!
4vir4ik [10]

Answer:

Step-by-step explanation:

well... all the least common factor have to write in the increasing order.

So, following this picture, we have to write in this order:

2 x 2 x 2 x 3 x 5

5 0
3 years ago
Read 2 more answers
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