1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lesechka [4]
3 years ago
8

A = {a, b, c, d}

Mathematics
1 answer:
Rama09 [41]3 years ago
5 0

Answer:

No, Johnny is not correct

A U B = {a,b,c,d,e,f,g,h}

Step-by-step explanation:

Johnny's answer does not have c and d, elements that are in A and B, so A U B must have all elements that belong to A or B.

The (U) represents the sum of elements between two sets. So If a set has three elements {@,#,$} and another set has 5 elements {%,^,&}, (U) equals the sum of these sets: {@,#,$,%,^,&}.

The same is true for the sets A and B.

A = {a, b, c, d}

B = {c, d, e, f, g, h}

A U B = {a,b,c,d,e,f,g,h}

Note: c, d are repeated, in A and B. It is not necessary to write them twice in the final answer.

You might be interested in
X is a positive integer and 15x - 43 < 5x + 2. Work out the possible values of x.​
Mice21 [21]

Answer:

x = 1, 2, 3, 4

Step-by-step explanation:

15x - 43 < 5x + 2

15x - 5x - 43 < 2

15x - 5x < 2 + 43

10x < 45

x < 4.5

x = 1, 2, 3, 4

5 0
3 years ago
Which would be the correct answer!
Blizzard [7]

Answer:

I think also option c ok

8 0
3 years ago
In the triangle below, what is the side opposite the 30 degree angle
Afina-wow [57]
tan(30^o)= \frac{opposite }{adjacent} \  \ \ \  \to  \\ \\ opposite = adjacent*tan(30^o)=3* \frac{ \sqrt{3} }{3} = \sqrt{3}
4 0
2 years ago
What is the Triangle Congruence Theorem and is it congruent?
faust18 [17]

Answer:

Two triangles are congruent if their corresponding sides are equal in length and their corresponding interior angles are equal in measure. We use the symbol ≅ to show congruence. Corresponding sides and angles mean that the side on one triangle and the side on the other triangle, in the same position, match.Step-by-step explanation:

5 0
3 years ago
the sum of the ages of a man and his wife is at least 104 years if the man is x years old and the wife is x - 4 years old find t
larisa [96]

Answer:

x ≥ 54

Step-by-step explanation:

x+x-4 ≥ 104

2x ≥ 104 + 4

2x ≥ 108

x ≥ 54

6 0
2 years ago
Other questions:
  • Marie spends 14 dollars on lottery tickets every week and spends $128 per month on food. On an annual basis, the money spent on
    15·1 answer
  • -8x + 2x – 16 &lt; -5x + 7x
    14·1 answer
  • If Darnell can buy 10 cases of water for $30.00, how much would it cost for 15 cases
    10·1 answer
  • What is the y-intercept if the line?<br> A. 0<br> B. -2<br> C. 1<br> D. 1/2
    7·2 answers
  • Donna charges $25.75 for a haircut and $40.50 for a color treatment. Donna did 5 haircuts and 3 color treatment each day for 6 d
    14·1 answer
  • A rope was 14.35 inches long. Megan cut the rope into7equal pieces of length what was the length of each piece in inches.
    6·1 answer
  • HELP....
    14·1 answer
  • Can you please answer the following
    8·1 answer
  • Type the correct answer in each box. Use numerals instead of words. If necessary, use/ for the fraction bar(s).Find the inverse
    13·2 answers
  • What is a computer ​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!