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
scoray [572]
3 years ago
12

Pls answer my question :)​

Mathematics
2 answers:
mina [271]3 years ago
8 0

Answer:

U={1,2,3,4,5,6,7,8,9,10,11}

A={4,8,12}

B={2,4,6,8,10}

A union B ( A U B ) = { 2,4,6,8,10,12}

ans: { 2,4,6,8,10,12}

UNO [17]3 years ago
5 0

Answer:

A ∪ B = {2, 4, 6, 8 10}

Step-by-step explanation:

Given the following set notation:

U = {x|x is a counting number less than 11)

A = {x|x is a number divisible by 4 but <u>less than</u> 12} ← <em>This means it doesn't include 12!</em>

B = {x|x is a multiple of 2 between 2 and 10}  

U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

The following are the elements of A and B:

A = {4, 8}

B = {2, 4, 6, 8, 10}

Therefore, the union of A and B are:

A ∪ B = {2, 4, 6, 8 10}

     

You might be interested in
Quan uses 19 over 2 cups of flour recipe. after baking, one has 17 over 2 cups of flour left over. Find the number of cups of fl
zmey [24]

Answer: 8.5 cups of flour.

Step-by-step explanation: So he first has 19/2 cups of flour, 19/2 cups of flour is the recipe, which is 9.5 cups of flour. He finishes the recipe with 17/2 cups left, which is 8.5 cups of flour.

4 0
4 years ago
Please help I’ll give brainlest!!
Alex787 [66]

Answer: 5

Step-by-step explanation:

AE is half of AC

2 (x + 2) = 5x - 11

2x + 4 = 5x - 11

    + 11        + 11

2x + 15 = 5x

- 2x       - 2x

15 = 3x

/ 3   / 3

x = 5

6 0
3 years ago
Find the surface area of the triangular prism shown below.<br> units2<br> 5<br> 7
dusya [7]
Answer: 136 units squared

Explanation: 5*7=35, 5*7=35, 6*7=42, 1/2 of 4*24=12, 1/2 of 4*24=12

35+35+42+12+12= 136 units squared
7 0
3 years ago
Hunter is 1.75 meters tall. At 12 noon, he measures the length of a tree's shadow to be 30.85 meters. He stands 26.8 meters away
Likurg_2 [28]
Enjoy mu little post-it note drawings

7 0
3 years ago
Read 2 more answers
A metallurgist has an alloy with 5​% titanium and an alloy with 25​% titanium. He needs 100 grams of an alloy with 13​% titanium
Nimfa-mama [501]
So... the alloy with 5% titanium is ...some  alloy :), so is a mixed metal and among its mix it has 5% of titanium, it has other metals, but only 5% is titanium.

that means that if the amount of it is say "x", then the amount of titanium in it will be 5% or (5/100) * x, or 0.05x.

now, the 25% titanium, is the same issue, if say a quantity of "y" will only have 25% of titanium, regardless of other metals, so in "y" there is 25% or (25/100) * y, or 0.25y.

so, we need a mixture that yields only a 13% alloy, or 13/100, and will be 100 grams, so the amount of titanium in it will then be (13/100) * 100 or 13.

\bf \begin{array}{lccclll}&#10;&\stackrel{grams}{amount}&\stackrel{\%}{quantity}&\stackrel{concentrated}{quantity}\\&#10;\textit{5\% alloy}&x&0.05&0.05x\\&#10;\textit{25\% alloy}&y&0.25&0.25y\\&#10;------&------&------&------\\&#10;mixture&100&0.13&13&#10;\end{array}&#10;\\\\\\&#10;\begin{cases}&#10;x+y=100\implies \boxed{y}=100-x\\&#10;0.05x+0.25y=13\\&#10;----------\\&#10;0.05x+0.25\left( \boxed{100-x} \right)=13&#10;\end{cases}&#10;\\\\\\&#10;0.05x-0.25x+25=13\implies -0.20x=-12\implies x=\cfrac{-12}{=0.20}&#10;\\\\\\&#10;x=\stackrel{grams}{60}

how much of the 25% alloy will be needed?  well, y = 100 - x.
4 0
3 years ago
Other questions:
  • What is 768875 rounded to the nearest thousand​
    13·2 answers
  • Jackson has ten dollar bills and one dollar bills in his pocket. The number of ten dollar bills is five more than six times the
    7·1 answer
  • When dividing x ^ 3 + n * x ^ 2 + 4nx - 6 by x + 3 the remainder is -48. What is the value of ?
    9·1 answer
  • PLEASE HELP!!!<br> I don't understand ......<br> I would like an explanation as well..<br> Thanks
    5·1 answer
  • True or False: 1/4 is an example of a terminating decimal?
    14·1 answer
  • A number and its additive inverse, or opposite are considered what
    12·2 answers
  • Pls pls help pls i really need this by today pls help me
    7·2 answers
  • The sum of 19 and the cube of a number x
    7·1 answer
  • Please help will mark brainliest
    12·2 answers
  • Help please .............................
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!