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lisov135 [29]
3 years ago
13

(x-y)²-(x+y)² a)0 b)2y² c)-2y² d)-4xy e)-2(x+y)²

Mathematics
2 answers:
fgiga [73]3 years ago
6 0

Answer:

D

Step-by-step explanation:

-4xy

will be your answer after factoring

lions [1.4K]3 years ago
4 0

Answer:

d

Step-by-step explanation:

Given

(x - y)² - (x + y)² ← expand both factors using FOIL

= x² - 2xy + y² - (x² + 2xy + y²) ← distribute by - 1

= x² - 2xy + y² - x² - 2xy - y² ← collect like terms

= - 4xy → d

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Which answer uses the distributive property to write an expression equivalent to 5(32). 5(32) 5+30+2 5(30+2) 5*30*2
melisa1 [442]

Answer:

5(30 + 2)

Step-by-step explanation:

5(32)=160

5(30+2)=160

The rest equal different numbers

5 0
4 years ago
Read 2 more answers
One side of a rectangle is three times as long as another. If its area is 363 square centimeters, find its dimensions.
Yakvenalex [24]

9514 1404 393

Answer:

  11 cm by 33 cm

Step-by-step explanation:

You can solve this problem mentally as follows.

Consider the rectangle as 3 squares, side-by-side. Then the area of each of those squares is 363/3 = 121 cm^2. From your knowledge of the squares of numbers, you know that 121 = 11^2. So, the width of the rectangle is 11 cm, and the length is 3 times that, or 33 cm.

_____

Using variables, we can let w represent the width. Then 3w can represent the length, and the area is ...

  A = LW

  A = (3w)(w) = 3x^2 = 363

  w^2 = 363/3 = 121

  w = √121 = 11

  3w = 3·11 = 33

The width is 11 cm; the length is 33 cm.

7 0
3 years ago
Read 2 more answers
What is the slope of a line that contains the two points (4, 5) and (9, 7)? *
Sergio039 [100]

Answer:

\frac{2}{5}

Step-by-step explanation:

Line contains the points (4, 5) and (9, 7).

\therefore \: slope =  \frac{7 - 5}{9 - 4}  =  \frac{2}{5}  \\

8 0
4 years ago
PLEASE HELP FAST 50 POINTS!!
Pepsi [2]

Answer:

edit: adjacent angles

Step-by-step explanation:

hope this helps

5 0
3 years ago
Read 2 more answers
I need the correct answer
anzhelika [568]

Answer:

<6 =77

Step-by-step explanation:

Complementary angles add to 90

<5 + <6 =90

13 + <6 =90

Subtract 13 from each side

13-13 + <6 = 90-13

<6 =77

4 0
3 years ago
Read 2 more answers
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