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Ivan
3 years ago
7

Prove: For all sets AB,and CIA-B) U (A n B) = A

Mathematics
1 answer:
joja [24]3 years ago
8 0

Answer:

Step-by-step explanation:

(A-B)U (A∩B)  [   We know that difference of A and B is A∩B')

A∩B')U(A∩B)    

A∩(B'UB)      (Using Distributive law)

A∩(U)            [ Union of a set and its complement is always a universal set]

A                        Hence proved

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Minus then changes from 115.5 inches tall to 23.1 inches tall. What percent of change is that?
strojnjashka [21]

Answer:

80%

Step-by-step explanation:

23.1/115.5=0.2

1-0.2=0.8=80%

4 0
4 years ago
The measure of an angle is 83.4°. What is the measure of its supplementary angle?
Natalija [7]

Answer:

The supplementary angle is 96.6.

Step-by-step explanation:

Complementary angles make up to 90 degrees, but since this is a supplementary angle, it'll make up to 180 degrees. From there, you subtract 180-83.4 to get 96.6 degrees.

5 0
3 years ago
Which algebraic expression is a trinomial?
tangare [24]

Answer:

D. x^6 - x + √6

Step-by-step explanation:

Last option:

⇒  x^6 - x + √6

Cannot be simplified further and has three terms.

Therefore is a trinomial.

7 0
2 years ago
How to solve 1 2/3j=15
ivann1987 [24]

Answer:

j = 9

Step-by-step explanation:

The answer to the question above is solved below.

1 \frac{2}{3}j = 15

Convert the mixed numbers to improper fraction following the step: 1×3 = 3 +2 =5 / 3j = 5/3j

\frac{5}{3}j  = 15

Eliminate the fraction of the equation left hand side by multiplying both sides by 3

3 \times  \frac{5}{3}j = 3 \times 15

5j = 45

Divide both sides by 5

\frac{5j}{5}  =  \frac{45}{5}

j = 9

thus \: if \: 1  \frac{2}{3}j = 15. \: j = 9

7 0
4 years ago
In which order would the following numbers come from least to greatest?
Mekhanik [1.2K]

Answer:

-7/3, 0.5, 2/3, 3/4, 1.2 valued least to greatest

Step-by-step explanation:

-7/3 is negative then 0.5 then 2/3 is .6666 as a decimal then 3/4 which is .75 as a decimal and then 1.2

6 0
3 years ago
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