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Tatiana [17]
2 years ago
14

PLEASE HELP ME ON THIS!!

Mathematics
1 answer:
dedylja [7]2 years ago
8 0
Through 1-3 There should be a line that goes from (0,0) to (3,15) as they did work for three hours. The rest seems fine.
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HELP I NEED THIS NOW I HAVE 5 MINUTES LEFT AND 5 MORE QUESTIONS!!
Elan Coil [88]

Answer:

Step-by-step explanation:

1st box. -3x

2nd and 3rd box. -21 on each side

4th box. 0

and you have the rest I hope I could help you.

6 0
3 years ago
Suppose A= {5,6,8,10,12} and B= {8,9,12,13,14} <br><br><br><br> What is AunionB?
earnstyle [38]

Answer:

A ∪ B = {5 , 6 , 8 , 9 , 10 , 12 , 13 , 14}

Step-by-step explanation:

The symbol of union is ∪

The symbol of intersection is ∩

In the sets A and B

A ∪ B means all elements in sets A and B without repeating

A ∩ B means the common elements in sets A and B

n(A ∪ B) = n(A) + n(B) - n(A ∩B), where n is the number of elements in the set

Now let us solve the question

∵ Set A = {5 , 6 , 8 , 10 , 12}

∴ n(A) = 5

∵ Set B = {8 , 9 , 12 , 13 , 14}

∴ n(B) = 5

The elements 8 and 12 are in the two sets

∵ There are two common elements in the two sets 8 and 12

∴ n(A ∩ B) = 2

Use the 3rd rule above to find how many elements in A ∪ B

∵ n(A ∪ B) = 5 + 5 - 2

∴ n(A ∪ B) = 8

∴ The set of A ∪ B has 8 elements

∵ A ∪ B means all elements in A and B without repeating

∴ A ∪ B = {5 , 6 , 8 , 9 , 10 , 12 , 13 , 14}

4 0
3 years ago
A system of equations is shown below:
padilas [110]

Answer:

y=3

x=2

Step-by-step explanation:

i have answered it....feel free to ask if u don't get it

8 0
3 years ago
90 out of 120 students in your grade are girls at your school. What percentage are boys?
sesenic [268]
30% Bc there are 30 boys and 90 girls or it’s 10% boys
7 0
3 years ago
What is the total price of a $15 meal including 6% sales tax?
aev [14]
15×1.06
=15.9
therefor it is $15.90
4 0
3 years ago
Read 2 more answers
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