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3 years ago

6.is it Open or close

Mathematics

2 answers:

Ne4ueva [31]3 years ago

8 0

Answer:

It's closed.

Step-by-step explanation:

An inequality is closed ONLY if the sign is ≤ and ≥. An open circle is for < and >.

Free_Kalibri [48]3 years ago

3 0

Answer:

Step-by-step explanation:

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How is the formula for the circumference of a circle derived

Tanzania [10]

Answer:

Essentially by the definition of

Step-by-step explanation:

idk m8 i just googled it. seems legit ill send the link if youd like

8 0

3 years ago

A student was assigned to read a book over 5 days. On the first day, she read 25 pages. On the second day she read 45 pages, on

nignag [31]

Answer:

Hint : They are a all common factors of 5

Step-by-step explanation:

You divide each of them by 5 then add them all together then you will get your answer.

Good luck!

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2 years ago

Which products result in a perfect square trinomial? Select three options.

Kazeer [188]

Answer:

Second option: $(xy+x)(xy+x)$

Third option: $(2x-3)(-3+2x)$

Fifth option: $(4y^2+25)(25+4y^2)$

Step-by-step explanation:

By definition, a perfect square trinomial can be obtained by squaring binomials.

Then:

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

Knowing this, to obtain a perfect square trinomial, the binomials that you multiply must be equals.

Therefore, the products result in a perfect square trinomial are:

$(xy+x)(xy+x)=(xy+x)^2=(xy)^2+2(xy)(x)+x^2=x^2y^2+2x^2y+x^2$

$(2x-3)(-3+2x)=(2x-3)^2=(2x)^2-2(2x)(3)+3^2=4x^2-12x+9$

$(4y^2+25)(25+4y^2)=(4y^2+25)^2=(4y^2)^2+2(4y^2)(25)+25^2=16y^4+200y^2+625$

8 0

4 years ago

Read 2 more answers

Renee tossed 12 heads when tossing a coin 18 times.

Nadya [2.5K]

So,

Simply divide 12 by 18.
$\frac{12}{18} --\ \textgreater \ \frac{2}{3}$

The experimental probability of tossing heads was 2 out of 3.

5 0

3 years ago

Express in exponential form. log3 27 = 3

ollegr [7]

Hey!

Hope this helps...

~~~~~~~~~~~~~~~~~~~~~~~~~~~

How you right ANY log in Exponential form is like this:

Log_x Z = y

x^y = Z

So...

Log_3 27 = 3

3^3 = 27 would be your answer...

4 0

4 years ago

Read 2 more answers