2 years ago

In the equation below, variables X and Y represent two matrices. Which property of matrix addition is illustrated below?

Mathematics

1 answer:

klemol [59]2 years ago

6 0

The answer is commutative property.

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Write an expression for 5 times the difference of twice a number and 4

777dan777 [17]

Answer:

1. 50-x

2. 2x+189

3. x+109

4. x+99

5. x*(76-39)

6. 75+x

7. 45-3x

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9. 3x-25

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Step-by-step explanation:

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3 years ago

Factor Completely: x2 - 81 A.(x-9)(x+9) B.(x+9)(x+9) C.(x-9)(x-9) D.(9-x)(9+x)

Hunter-Best [27]

Answer is A

The binomial can be factored using the difference of squares formula a2-b2 = (a+b) (a-b) where a=x and b=9

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3 years ago

Read 2 more answers

BRAINLIEST ANSWER THIS IS URGENT PLEASE HURRY. ANSWER ALL THE BLANK BOXES.

shusha [124]

The answers are:

1) $x$

2) $x$

3) $\frac{ln(x+4)}{2}$

The explanation for this answer is shown below.

1. To solve this problem you must apply the following proccedure:

2. You have the function $f(x)=e^{2x}-4\\ y=e^{2x}-4$

3. You must switch $x$ and $y$ and then solve for $x$ :

$x=e^{2y}-4\\ x+4=e^{2x}\\ ln(x+4)=2y\\ y=\frac{ln(x+4)}{2}$

4. Finally, you obtain:

$f^{-1}(x)=\frac{ln(x+4)}{2}$

7 0

3 years ago

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iren2701 [21]

By the base is regular they mean it as all sides are 4m long

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3 years ago

Find the sum of the interior angle measures of a regular polygon with 17 sides

vova2212 [387]

Answer:

2700

Step-by-step explanation:

the formula is (n - 2) 180

4 0

3 years ago