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Pani-rosa [81]
3 years ago
14

PLEASE PLEASE PLEASE HELP ME WITH ALGEBRA 1 PLEASE!?!?!?!?!!!?!?!?!?!?! I WILL GIVE LOTS OF POINTS AND BRAINLEST PLEEEEEEEEEEEEE

EEEASE!!?!?!?!?!?!!?!?!?!?
What are the different ways you can solve a system of linear equations in two variables? What is the process for solving a system using each method?
Mathematics
2 answers:
meriva3 years ago
5 0
Im actually learning this myself atm, The three methods most commonly used to solve systems of equation are substitution, elimination and augmented matrices. Substitution is a method of solving systems of equations by removing all but one of the variables in one of the equations and then solving that equation. Elimination is another way to solve systems of equations by rewriting one of the equations in terms of only one variable. The elimination method achieves this by adding or subtracting equations from each other in order to cancel out one of the variables. <span>Augmented matrices can also be used to solve systems of equations. The augmented matrix consists of rows for each equation, columns for each variable, and an augmented column that contains the constant term on the other side of the equation. For example, the augmented matrix for the system of equations 2x + y = 4, 2x - y = 0 is [[2 1], [2 -1]...[4, 0]], Good luck!</span>
Marina CMI [18]3 years ago
4 0
Hey mate 

It is 
________________________________
2x + y = 4, 2x - y = 0 is [[2 1], [2 -1] [4, 0]

Hope I helped have a good day
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Plzzzzzzzz! A suitcase lock has a code 4 symbols long. The symbols on the lock are a star, a square, a circle, a triangle, a lin
34kurt

Answer:

                \dfrac{1}{30}

Step-by-step explanation:

6 symbols and 4-symbol code so number of combinations wich doesn't contain the same symbol twice would be:

6•5•4•3 = 360

If code starts with a star followed by triangle that means only one posibility for first two symbols and code doesn't containing the same symbol twice means that left 4 symbols for next two.

So number of combinations of code starting with a star followed by triangle and doesn't containing the same symbol twice will be:

1•1•4•3 = 12

The probability that a randomly chosen code starts with a star followed by triangle and doesn't contain the same symbol twice:

\dfrac{1\cdot1\cdot4\cdot3}{6\cdot5\cdot4\cdot3}=\dfrac{1\cdot1}{6\cdot5}=\dfrac{1}{30}

7 0
3 years ago
You make 12 equal payments. You pay a total of $1440. How much is each payment?
goldfiish [28.3K]

Answer:

$120

Step-by-step explanation:

$1,440/12= $120

Hope this helps :)

4 0
2 years ago
Read 2 more answers
What is the mean of your data 341, 237, 143,185,248,403,374,451,84,267,178,258,284,465,224
weqwewe [10]

Answer:

The mean for the given set of numbers is 276.133..... repeated

Step-by-step explanation:

To find this you must add the numbers up together and divide them by the amount of numbers there is.

6 0
2 years ago
Please help as soon as possible <br>it's due tomorrow ​
erma4kov [3.2K]

Answer:

378 cm^3

Step-by-step explanation:

V = Bh = l * w * h

since the Base B is 54 (l*w), multiply by 7 to find volume

54 * 7 = 378

7 0
3 years ago
According to the image,which describes a sequence of rigid motions that maps ABCDE onto A"B"C"D"E"
Bezzdna [24]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
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