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storchak [24]
3 years ago
15

Which term completes the product so that it is the difference of squares?

Mathematics
2 answers:
FromTheMoon [43]3 years ago
6 0

Answer:

the answer is  3

Step-by-step explanation:

(-5x-3)(-5x+3)=(5x)^2 - (3)^2

A difference of squares is the difference of two squared terms.

We have

a^2 - b^2

We can factorize the difference of squared terms like this:

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

We have (-5x-3)(-5x+3)

Lets prove it:

(-5x-3)(-5x+3) = (-5x*-5x)+(-5x*3)+(-3*-5x)+(-3*3)

(-5x-3)(-5x+3) = 25x^2+(-15x)+(15x)+(-9)

(-5x-3)(-5x+3) = 25x^2-15x+15x-9

(-5x-3)(-5x+3) = 25x^2-9

(-5x-3)(-5x+3) = (5x)^2 - (3)^2

Ray Of Light [21]3 years ago
5 0

Answer: 3

Step-by-step explanation:

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Komok [63]

Answer:

choosing two socks from a drawer of black and white socks without replacement

Step-by-step explanation:

Dependent events have results that depend on each other.  When I take one sock out, there are less socks in the drawer to pick from.  The probability of picking a certain sock changes because the number of socks are different when I do not put the sock back.  That makes the events dependent.

When I put the sock back, the  probability goes back to what it was before I took the sock, and now the results do not depend on each other, so when they are replaced, they are independent

7 0
3 years ago
Read 2 more answers
A certain species of tree grows an average of 0.5 cm per week. Write an equation for the sequence that represents the weekly hei
Anestetic [448]
For this we will use equation:

H = starting height + rate_of_growth*periods
We can mark H with index w to represent how many weeks have passed.
Because all of this we can write:

Hw = 200 + 0.5*w

To calculate height after some number of weeks all you need to do is to exchange w with number of weeks.
4 0
3 years ago
Complete the square.<br><br><img src="https://tex.z-dn.net/?f=t%5E%7B2%7D%20-24t%2B%20%3F" id="TexFormula1" title="t^{2} -24t+ ?
irina [24]

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8 0
3 years ago
5(3-6x)=4(3x+7)+5x<br> solve the following equation
kherson [118]
5(3-6x)=4(3x+7)+5x
x= - 13/47
7 0
3 years ago
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The ratio of 1.4/7 in the simplest form
sweet [91]
<span>If you want to convert 1.4 into a fraction, you can do it like this:
<span>
1 <span>equals to </span>1/1 <span>and </span>0.4 <span>equals to </span>4/10 <span>which simplifies to </span>2/5.
<span>The result is </span>1 2/5.

If you want to write the ratio of 1.4/7 in the simplest form, you can do this using the following steps:

1.4/7 = 1 2/5 / 7 = 7/5 / 7 = 7/5 * 1/7 = 1/5 = 0.2

The correct result would be 1/5.</span></span>
3 0
3 years ago
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