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dybincka [34]
3 years ago
10

Which of the following are valid row operations for augmented matrices?

Mathematics
1 answer:
xxMikexx [17]3 years ago
6 0

Answer:

  • Switch positions of two rows.
  • Add elements of one row to another row.
  • Multiply elements of one row by a scalar

Step-by-step explanation:

In general, each row represents a linear equation. The rules of equality apply. They allow you to multiply both sides of the equation by a scalar, add equal values to each side of the equation (add one row to another). Rearranging the sequence of equations (swapping rows) does not change the system or its solution.

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Karolina [17]

Answer:$1.25

Step-by-step explanation:

2 divided by 1.60=$1.25

3 divided by 2.40= $1.25

5 divided by 4.00= $1.25

8 divided by 6.40 = $1.25

3 0
2 years ago
7 (x + 3) - 3(4x + 9) = 14
Paul [167]

Answer:

-4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
If 3 bars of chocolate cost $15.00 ghana cedis how much will 7 bars cost ratio
Rudiy27

Answer:

7 chocolate bars will cost $35

Step-by-step explanation:

if 3 cost $15 then 1 bar would cost 5 dollars and 5x7=35

here is a ratio:

<u>3</u> = <u>7</u>

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6 0
3 years ago
What is the length of the line segment with endpoints (−3,8) and (7, 8) ? Enter your answer in the box
ki77a [65]
Length = √(y2-y1)² + (x2-x1)²
l = √(8-8)² + (7+3)²
l = √10²
l = 10

In short, Your Answer would be 10 units

Hope this helps!
6 0
3 years ago
Read 2 more answers
Someone help, please and thank you
taurus [48]

Answer:

6√2

Step-by-step explanation:

Given,

θ = 45

Opposite side = 6

To find : - Hypotenuse

Formula : -

sin θ = Opposite side / Hypotenuse

[ The value of sin 45 = 1 / √2 ]

sin 45 = 6 / Hypotenuse

1 / √2 = 6 / Hypotenuse

Cross multiply,

Hypotenuse = 6√2

8 0
2 years ago
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