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vova2212 [387]
3 years ago
6

If xy=0, what must be true about either x or y

Mathematics
2 answers:
allochka39001 [22]3 years ago
5 0

Answer:

X and y is 0 or either X or y is 0

Step-by-step explanation:

zero multiplied by anything equals to zero

evablogger [386]3 years ago
4 0

Answer:

either x or y must equal 0​

Step-by-step explanation:

ts given that xy = 0

Remember that product of two numbers can be zero only if:

Both of them are zero or Either of them is zero as zero multiplied to any non-zero number will always be equal to zero. This is known as Zero Product Property.

So, if the product of x and y is equal to 0 there are two possibilities:

Both x and y are equal to 0

Either x or y must be equal to 0

Note that the condition both x and y are equal to zero is not a must condition, because even if one of them is equal to zero, the entire expression will be equal to zero.

Hence, the condition which has to be true in all cases for xy = 0 is:

either x or y must equal 0​

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Hurt just hurry and answer please
Luden [163]

Answer:

84

Step-by-step explanation:

Solve:

6*7= 42

42*2.00=84

Hope this helps!

3 0
3 years ago
a yard width is 2 less than it's length. If the perimeter of the yard is 20 feet determine the length and the width of the yard
Arte-miy333 [17]

Answer:

The length is 6 feet and the width is 4 feet

Step-by-step explanation:

Let x represent the length of the yard

The width can be represented by x - 2, since it is 2 less than the length.

Use the perimeter formula, P = 2l + 2w, where l is the length and w is width

Plug in the expressions and perimeter:

20 = 2x + 2(x - 2)

Solve for x:

20 = 2x + 2x - 4

20 = 4x - 4

24 = 4x

6 = x

So, the length is 6. Plug this into x - 2 to find the width

x - 2

6 - 2

= 4

So, the length is 6 feet and the width is 4 feet

5 0
2 years ago
Find the solutions to the system
Musya8 [376]
<span>y=x^2+5x+6
y=4x+12
Solution = (-3,0) and (2,20)

</span><span>y=x^2-3x-1
 y=8x-1
Solution = (0,-1) and (11,87)</span>
3 0
3 years ago
8.97 in word form and expanded form
avanturin [10]
8+.90+.07
This the answer because you have to make it as an addition way. 
Hope I helped.
4 0
3 years ago
Read 2 more answers
Please help im stressing :((((<br> (what is Danielle mistake in this problem )
statuscvo [17]

Answer:

Daniel's Mistake was that she didnt add all the sides

Step-by-step explanation:

She only added the right side of the triangle, and the right and bottom sides of the square. She is missing the left of the triangle, which is another 6x-4, and the left side of the square, which is 12x +3.

Using these sides the answer should look like this,

set up your problem

1) (6x-4)*2 + (12x+3)*2 + (14x+13)

multiply your 2's in

2) (12x-8) + (24x+6) + (14x+13)

simplify

3) 50x + 11 is your answer

7 0
2 years ago
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