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Fed [463]
3 years ago
11

Solve the system of equations algebraically. Verify your

Mathematics
1 answer:
castortr0y [4]3 years ago
6 0

Answer:

(1/2, -3)

Step-by-step explanation:

y = 4x – 5

y= -3

substitute y into the firt formula,

-3=4x-5

4x=2

x=1/2

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Practice Exercise 1:
Rudiy27

Answer:

Step-by-step explanation:

A

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3 years ago
Which statement describes how to solve<br> 3x+4 = 3x+4?
Likurg_2 [28]

Answer:

That is a infinite solutions equation, but to solve this you would have to subtract 3x from both sides and you will get 4=4.

Step-by-step explanation:

3x+4=3x+4

<u>-3x    -3x</u>

4=4

5 0
3 years ago
If a number is a multiple of 2, then it is even. Identify the hypothesis. Choose the correct answer below. A. it is odd. B. a nu
azamat
D. it is even

In the example statement, a hypothesis is being made of whether the number is a multiple of 2. The hypothesis is that it is even. And there's your answer.
7 0
3 years ago
George and his friend Jane buy copies of the same book on the internet. George pays $16.95 and jane pays £11.99 on a day when th
Nitella [24]

Answer:

$19.15

Step-by-step explanation:

$1=0.626

$1/0.626=£1

$11.99=$11.99/0.626

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7 0
3 years ago
Read 2 more answers
Which linear system has this matrix of constants? `[[12],[11],[4]]` a, b, c or d <br> IMAGE ATTACHED
borishaifa [10]

The following linear system has [[12], [11], [4]] matrix of constants,

x + y + z = 12

x - y = 11

x - y + z = 4  

(Option D)

Verification of the Choice:

The given linear system is,

x + y + z = 12

x - y = 11

x - y + z = 4  

This can be written in the form of matrix as follows,

\left[\begin{array}{ccc}1&1&1\\1&-1&0\\1&-1&1\end{array}\right] \left[\begin{array}{}x&y&z\end{array}\right] = \left[\begin{array}{}12&11&4\end{array}\right]

Hence, option D is the correct linear system as it contains the desired matrix.

About the Other Options:

The RHS matrix in option A would be,

\left[\begin{array}{}26&17&23\end{array}\right] which is not the desired matrix.

Similarly, the linear systems in the options B and C contain the matrix \left[\begin{array}{}23&17&26\end{array}\right] and the matrix  \left[\begin{array}{}4&11&12\end{array}\right] on the RHS of the equality, which are not desired.

Thus, option D is correct.

Learn more about a matrix here:

brainly.com/question/9967572

#SPJ1

4 0
2 years ago
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