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3 years ago

Which property of multiplication is shown below?

Mathematics

2 answers:

kati45 [8]3 years ago

8 0

A.: Commutative Property

drek231 [11]3 years ago

5 0

Answer:

The option A. is correct

Step-by-step explanation:

x = a + bi and y = c + di

Now, x × y = (a + bi) × (c + di)

= ac + adi + bci + bdi²

= ac - bd + i(ad + bc)

Now, y × x = (c+ di) × (a + bi)

= ac + bci + adi + bdi²

= ac - bd + i(ad + bc)

Therefore, x × y = y × x

And if ab = ba then the property is known as commutative property.

Hence, The option A. is correct

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nexus9112 [7]

Answer:

Step-by-step explanation:

Plz mark as brainliest

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3 years ago

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If a = 3 what is the value of b in the equation 2a+b=13? And can you explain?

sladkih [1.3K]

Answer:

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Step-by-step explanation:

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4 years ago

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4 years ago

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adoni [48]

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If you add 25 to both sides, you get

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3 years ago

Will mark brainliest! Questions are in the picture!

alexdok [17]

Answer:

52.9 inches .

Step-by-step explanation:

Given that the triangular indentation has an area of 100 in.² and the base and height of this traingle are represented by expressions 3x and x+3 respectively . We need to find out the <u>perimeter </u>to the nearest tenth.

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$\rm\longrightarrow Area_{\triangle}=\dfrac{1}{2}(base)(height)$

Substituting the respective values,

$\rm\longrightarrow 100\ =\dfrac{1}{2}(x+3)(3x)\\\\\rm\longrightarrow 2(100) = 3x(x+3)\\\\\rm\longrightarrow200 = 3x^2+9x\\\\\rm\longrightarrow 3x^2+9x-200=0$

On using the <u>Quadratic</u><u> formula</u> , we have;

$\rm\longrightarrow x =\dfrac{-9\pm\sqrt{9^2-4(3)(-200)}}{2(3)} \\\\\rm\longrightarrow x =\dfrac{-9\pm \sqrt{81+1200}}{6}\\\\\rm\longrightarrow x =\dfrac{-9\pm \sqrt{1281}}{6}$