I dont understand the elimanation method can someone explain?

2 answers:

3 0

The best way I can explain the elimination method is, it's a method where you either add or subtract equations in order to get rid of a variable.

Igoryamba3 years ago

3 0

For elimination you would be canceling out your x or your y. When canceling out one of them you would then be solving for whatever variable is left over. Say you have your y left over and you solved it already, you will take whatever you got for your y and plug it into whichever equation is easiest to solve for x. Once you have both of your variables, y and x, that would be your coordinate.
HOPE THIS HELPS! ^_^

You might be interested in

Which angle measures about 60°?

lord [1]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Calculate this reflection of the triangle:

Mice21 [21]

Answer:

a = 3, b = 0, c = 0, d = -2

Step-by-step explanation:

<em>To find the reflection Multiply the matrices</em>

∵ The dimension of the first matrix is 2 × 2

∵ The dimension of the second matrix is 2 × 3

<em>1. Multiply the first row of the 1st matrix by each column in the second matrix add the products of each column to get the first row in the 3rd matrix.</em>

2. Multiply the second row of the 1st matrix by each column in the second matrix add the products of each column to get the second row of the 3rd matrix

$\left[\begin{array}{ccc}1&0\\0&-1\end{array}\right]$ × $\left[\begin{array}{ccc}0&3&0\\0&0&2\end{array}\right]$ = $\left[\begin{array}{ccc}(1*0+0*0)&(1*3+0*0)&(1*0+0*2)\\(0*0+-1*0)&(0*3+-1*0)&(0*0+-1*2)\end{array}\right]=\left[\begin{array}{ccc}0&3&0\\0&0&-2\end{array}\right]$

Compare the elements in the answer with the third matrix to find the values of a, b, c, and d

∴ a = 3

∴ b = 0

∴ c = 0

∴ d = -2

7 0

3 years ago

The probability that a student guesses the correct answer to a four-choice multiple choice question is

Lilit [14]

Since we already know that there is a 25% chance to guess the correct answer to a multiple choice question, all we have to do is multiply .25 and 68 to get the expected amount of answers a student can possibly guess. We multiply .25 since it is the decimal form of 25% and 68 is our total questions.

.25 x 68 = 17

Therefore, a student can expect to guess 17 answers correct on a test with 68 multiple choice questions.

3 0

3 years ago

Read 2 more answers

If triangle ABC defined by the coordinates A(1, 1), B(9, 1), C(1, 9) is dilated by a scale factor of 1 2 , with resulting vertex

AfilCa [17]

Answer: the answer is b (1, 1)

In this case, the center of dilation is a vertex of the original figure.

The center of dilation is a fixed point in the plane about which all points are expanded or contracted.

Step-by-step explanation:

3 0