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Angelina_Jolie [31]
2 years ago
11

( 3 × 10^ 6 ) + ( 3 × 10 ^6 )

Mathematics
1 answer:
melisa1 [442]2 years ago
5 0

Answer:

6000000

Step-by-step explanation:

3(106)+3(106)

=(3)(1000000)+3(106)

=3000000+3(106)

=3000000+(3)(1000000)

=3000000+3000000

=6000000

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Hình nè kdowowndjlwlejrbnenabdbsbnwnwnsnsnjdjww

3 0
3 years ago
FOR 40 POINTS<br> The is used to measure volume.<br> choices:<br> meter<br> gram<br> liter
Pachacha [2.7K]

Answer:

liter

Step-by-step explanation:

4 0
3 years ago
I NEED IMMEDIATE HELP!!!!
DerKrebs [107]
<h2>Hello!</h2>

The answers are:

C) (3+xz)(-3+xz)

D) (y^2-xy)(y^2+xy)

F) (64y^2+x^2)(-x^2+64y^2)

<h2>Why?</h2>

To know which of the products results in a difference of square, we need to remember the difference of squares from:

The difference of squares form is:

(a+b)(a-b)=a^{2}-b^{2}

So, discarding each of the given options in order to find which products result in a difference of squares, we have:

<h2>A)</h2>

(x-y)(y-x)=xy-x^{2}-y^{2} +yx=-x^{2} -y^{2}

So, the obtained expression is not a difference of squares.

<h2>B)</h2>

(6-y)(6-y)=36-6y-6y+y^{2}=y^{2}-12y+36

So, the obtained expression is not a difference of squares.

<h2>C)</h2>

(3+xz)(-3+xz) =(xz+3)(xz-3)=(xz)^{2}-3xz+3xz-(3)^{2}\\\\(xz)^{2}-3xz+3xz-(3)^{2}=(xz)^{2}-(3)^{2}

So, the obtained expression is a difference of squares since it matches with the form of the difference of squares.

<h2>D)</h2>

(y^2-xy)(y^2+xy)=(y^{2})^{2}+y^{2}*xy-y^{2}*xy-(xy)^{2} \\\\(y^{2})^{2}+y^{2}*xy-y^{2}*xy-(xy)^{2}=(y^{2})^{2}-(xy)^{2}

So, the obtained expression is a difference of squares since it matches with the form of the difference of squares.

<h2>E)</h2>

(25x-7y)(-7y+25x)=-175xy+(25x)^{2}+49y^{2}-175xy\\\\-175xy+(25x)^{2}+49y^{2}-175xy=(25x)^{2}+49y^{2}-350xy

So, the obtained expression is not a difference of squares

<h2>F)</h2>

(64y^2+x^2)(-x^2+64y^2)=(64y^2+x^2)(64y^2-x^2)\\\\(64y^2+x^2)(64y^2-x^2)=(64y^{2})^{2} -(x^{2}*64y^{2})+(x^{2}*64y^{2})-(x^{2})^{2}\\ \\(64y^{2})^{2} -(x^{2}*64y^{2})+(x^{2}*64y^{2})-(x^{2})^{2}=(64y^{2})^{2}-(x^{2})^{2}

So, the obtained expression is a difference of squares since it matches with the form of the difference of squares.

Hence, the products that result in a difference of squares are:

C) (3+xz)(-3+xz)

D) (y^2-xy)(y^2+xy)

F) (64y^2+x^2)(-x^2+64y^2)

Have a nice day!

5 0
4 years ago
FROM A SQUARE SHEET OF CARDBOARD OF SIDE 20cm ,SECTORS OF ECAH RADIUS 7cm IS CUT OFF FROM EACH CORNER.THEN AREA OF REST OF THE C
VikaD [51]

Answer:

246 cm^2

Step-by-step explanation:

Area of the rest of cardboard = Area of square - Area of the 4 sectors

Kindly note that at each corner of the cardboard, the angle is 90 degrees

Area of square = L^2 = 20^2 = 400 cm^2

Area of a sector = theta/360 * pi * r^2

Since we have 4 sectors;

Area of sectors =4 * 90/360 * 22/7 * 7 * 7

= 22/7 * 49 = 22 * 7 = 154 cm^2

Area of the remaining part of cardboard = 400 cm^2 - 154 cm^2 = 246 cm^2

3 0
3 years ago
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