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3 years ago

PLLZZZZZZZZZZZZZZZZZZZZZZZZZ HELPPP PLZZZZZZZZZZZZZZZZZZZZZ

Mathematics

2 answers:

MariettaO [177]3 years ago

6 0

Answer:

the answer is D 9w=21

how

21/9 = 2.3333333333

Step-by-step explanation:

den301095 [7]3 years ago

4 0

Answer: your answer is C. there is no common factor between 6 and 15.

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Expand the binomial<br> <img src="https://tex.z-dn.net/?f=%28x-%5Cfrac%7B2%7D%7B5%7D%29%5E%7B2%7D" id="TexFormula1" title="(x-\f

kkurt [141]

Answer:

$(x- \frac{2}{5})^{2} = x^2 -\frac{4}{5}x + \frac{4}{25}$

Step-by-step explanation:

You have two methods to expand this binomial.

Method 1

If you have the expression:

$(x- \frac{2}{5})^{2}$

You can write the expression it in the following way:

$(x-\frac{2}{5})^{2}=(x-\frac{2}{5})(x-\frac{2}{5})$

Then, apply the distributive property:

$(x-\frac{2}{5})(x-\frac{2}{5}) = x^2 -\frac{2}{5}x -\frac{2}{5}x+ (\frac{2}{5})\frac{2}{5}$

Simplify the expression:

$(x-\frac{2}{5})^2= x^2 -\frac{4}{5}x+ (\frac{4}{25})$

---------------------------------------------------------------------------------------

Method 2

For any expression of the form:

$(a-b)^2$

Its expanded form will be:

$(a-b)^2= a^2 -2ab + b^2$

$a = x$

$b =\frac{2}{5}$

$(x- \frac{2}{5})^{2} = x^2 - 2x\frac{2}{5} + (\frac{2}{5})^2$

$(x- \frac{2}{5})^{2} = x^2 -\frac{4}{5}x + \frac{4}{25}$

3 0

3 years ago

HELP !!

VLD [36.1K]

Start at 4 on the y axis

move 2 units up and 3 units right

3 0

3 years ago

Greg bought 2 boxes of balloons. He used half of them to decorate his yard. he used 40 to decorate his porch. and used the rest

Anuta_ua [19.1K]

20 I'm guessing? Hope this helps!

6 0

3 years ago

Which rational number equals 0 point 2 with bar over 2? 1 over 10 1 over 9 2 over 10 2 over 9

Alja [10]

Answer:

$0.\bar2=\frac{2}{9}$

Step-by-step explanation:

We want to find the rational number which is equal to $0.\bar2$ .

Let $y=0.\bar2$ ....eqn(1)

Multiply both sides by 10

$10y=2.\bar2$ .....eqn (2)

Subtract eqn (1) from eqn (2)

$10y-y=2.\bar2-0.\bar2$

$\implies 9y=2$

Divide both sides by 9.

$\implies y=\frac{2}{9}$

4 0

3 years ago

WILL MARK BRAINLIEST<br> THANKS<br> FIND HEIGHT AND VOLUME

Nimfa-mama [501]

Answer:

~ 639.75 cm^3

Step-by-step explanation:

see pic

<h2>Edit: I did this with the assumption that 12 was the diameter, if it's the radius disregard this please</h2>

8 0

2 years ago