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avanturin [10]
3 years ago
13

If x-y doesn't equal 0 then x^2-y^2 / x-y =

Mathematics
1 answer:
NARA [144]3 years ago
3 0
Recognize the differnce of 2 perfect squares

a²-b²=(a-b)(a+b)

so
\frac{x^2-y^2}{x-y}=\frac{(x-y)(x+y)}{x-y}=(\frac{x+y}{1})(\frac{x-y}{x-y})=(x+y)(1)=x+y
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Write an expression equivalent to -9y + 2x + 3 - 7x + 4y.
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Answer:

-5y - 5x + 3    EASY MATH

Step-by-step explanation: Because its just easy

GIVE BRAINLEIST WHEN U CAN PLEASE

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The number of books checked out from the library varies directly with the number of book reports assigned. there were 3375 books
yan [13]
3375/225=15
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. Write the following expression in factored form using the greatest common factor.<br> 50a3 + 10a2
Tanya [424]

The factors of  50a³  are  1,  2,  5,  10,  25,  50,
   and their products with a, a² and a³ .

The factors of  10a²  are  1,  2,  5,  10,
    and their products with 'a' and a² .

Their common factors are  1, 2, 5, 10,
       and their products with 'a' and a².

Their greatest common factor is  10a² .

(Another way to spot it, easily, is to remember this helpful factoid:

                 If the smaller number is a factor of the larger number,
                 then the smaller number is their greatest common factor.

Using the greatest common factor, then . . .

           50a³ + 10a²  =     10a²(5a + 1) .

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3 years ago
Sketch seven points. Then, connect the points to form a closed plane figure. What kind of polygon did you draw?
weqwewe [10]

It’s a heptagon, which has seven points.

7 0
3 years ago
Read 2 more answers
Rata-rata markah matematik untuk Amin, azman dan aziz adalah 73. Tanda Azman lebih 35 berbanding Amin manakala aziz dua kali gan
vagabundo [1.1K]

Answer:

The Amin's score in math was 46.

Step-by-step explanation:

The question is:

The average math score for Amin, azman and aziz is 73. Azman marks 35 more than Amin while aziz is twice that of Amun. What is Amin's sign?

Solution:

Let us denote that:

<em>x</em> = Amin's score in math

<em>y</em> = Azman's score in math

<em>z</em> = Aziz's score in math.

The average of <em>x</em>, <em>y</em> and <em>z</em> is, 73.

That is:

\frac{x+y+z}{3}=73\\\\\Rightarrow x+y+z = 219

Now it is provided that:

y=x+35...(i)\\z=2x...(ii)

Use the equations (i) and (ii) to determine the value of <em>x</em> as follows:

x+y+z=219\\\\x+x+35+2x=219\\\\4x=184\\\\x=46

Thus, the Amin's score in math was 46.

6 0
3 years ago
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