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zubka84 [21]
3 years ago
6

May someone please help me?

Mathematics
1 answer:
Irina-Kira [14]3 years ago
6 0
What's the question Love? I can't help til i know the question =/

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Can somebody plz help me [-5+(-7)]^2-(7+3)^2
Firdavs [7]

Answer:

\boxed{44}

Step-by-step explanation:

[-5+(-7)]^2-(7+3)^2

Resolving Parenthesis

(-5-7)^2-(10)^2\\(-12)^2-100\\144-100

=> 44

8 0
3 years ago
Read 2 more answers
[Systems of equations] (/20) 1. Suppose the coefficient matrix of a system of linear equations has a pivot position in every row
Marina86 [1]

Answer:

The system is consistent because the rightmost column of the augmented matrix is not a pivot column.

Step-by-step explanation:

It is given that the coefficient of the matrix of a linear equation has a pivot position in every row.

It is provided by the Existence and Uniqueness theorem that linear system is said to be consistent when only  the column in the rightmost of the matrix which is augmented is not a pivot column.

When the linear system is considered consistent, then every solution set consists of either unique solution where there will be no any variables which are free or infinitely many solutions, when there is at least one free variable. This explains why the system is consistent.

For any m x n augmented matrix of any system, if its co-efficient matrix has a pivot position in every row, then there will never be a row of the form [0 .... 0 b].

6 0
3 years ago
A 10-foot board is cut into two pieces. If one piece is x feet long, express the other length in terms of x
OleMash [197]

Answer:

10-x ft long

Step-by-step explanation:

If it starts out 10ft long, and xft is taken away, then the remaining board would be 10-x ft long.

In terms of x, I believe it would just be 10-x ft long

7 0
3 years ago
Darren got 42 out of 56 questions correct on a test. What percent of the questions did he get correct?
chubhunter [2.5K]

Answer:

75%

42/56 =  42/56

Convert to decimal form:

42÷56 = 0.75

= 75%

Can you mark as brainliest if its right?

3 0
2 years ago
Read 2 more answers
Twenty is the product of x and 3 less than nine.
Anna35 [415]

Answer:

9-3x=20

Step-by-step explanation:

It is the wordplay

7 0
3 years ago
Read 2 more answers
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