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DENIUS [597]
3 years ago
12

B ∩ U A = U(B ∩ A).

Mathematics
1 answer:
NARA [144]3 years ago
5 0
Are those emojis or no
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Which expressions are differences of squares?
Zarrin [17]
If an expression is the difference of two squares, it will follow this format:
(a)^{2}-(b)^{2}
where a and b are integers or variables.

1) w^{2} - 121 = (w)^{2} -( 11)^{2}
Since the expression follows the format, it's a DoTS.

2) Since the binomial has an addition sign, it isn't a DoTS.

3) n^{2}-50=(n)^{2}-(5\sqrt{2})^{2}
The second term isn't an integer, so the expression isn't a DoTS.

4) a^{2}-36=(a)^{2}-(6)^{2}
Since the expression follows the format, it's a DoTS.

Therefore, the first and fourth expressions are differences of two squares.
6 0
3 years ago
Read 2 more answers
Almost done guys I have 5 more questions
erastova [34]

Answer:the third one

Step-by-step explanation:

just time how much months,weeks, and years, for each amount

8 0
3 years ago
How do you factor this equation?<br> 7x²+5x-3
svetoff [14.1K]

Answer:

Step-by-step explanation:

This is a quadratic expression.  Use the quadratic formula to find the roots, and then once you have the roots, write the corresponding factors.

The coefficients of this quadratic expression are a = 7, b = 5 and c = -3

The discriminant is b^2 - 4ac, or 5^ - 4(7)(-3), or 25 + 84 = 109.  Because this is positive, we know that the expression has two unequal, real roots.

Using the quadratic formula, we now find these roots:

      -b ± √(discriminant)

x = --------------------------------   which here is:

                   2a

      -5 ± √109

x = -----------------

             14

The factors can be found from these two roots.  The first one is

      -5 - √109                  5 + √109

(x - ---------------- )  =  (x + ---------------- )

             14                              14

and the second is

        5 - √109              

(x + ---------------- )  

             14                

8 0
3 years ago
22/100 in simplest form
lubasha [3.4K]

22/100:

You can actually divided the numerator and denominator by a number that can go into both 22 and 100 but also not get a remainder.

So 22/2= 11

And 100/2=50

Combined you get 11/50

Hope it helps!!!

5 0
3 years ago
Read 2 more answers
What is the value of 6n - 2 when n =3
denpristay [2]
The awnser is 16   because 6 times 3 is 18 - 2 is 16
5 0
2 years ago
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