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kirza4 [7]
3 years ago
6

Answers please please please with a cherry on top!

Mathematics
1 answer:
ipn [44]3 years ago
5 0
Would you like a full explanation or is it better for me just to plug it all in to my graphing calculator to get quick answers
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The Venn diagram shows all of the elements in sets A, B and ξ. Find the elements in (A ∩ B) U (A U B)’
marusya05 [52]

This is impossible to answer without knowing what the sets A and B contain (and what ξ even refers to - universal set?).

However, we have

(A U B)' = A' ∩ B'

so that

(A ∩ B) U (A U B)' = (A ∩ B) U (A' ∩ B') = (A U A') ∩ (B U B')

If ξ is indeed the universal set, then both A U A' = ξ and B U B' = ξ, so we end up with ξ ∩ ξ = ξ.

8 0
2 years ago
Jack made $30 mowing lawns in May and $72 mowing lawns in June. By what percent did the amount of money Jack made mowing lawns i
WARRIOR [948]
$72 - $30 = $42

It increased $42.



Now take this number and divide by the original number (first):

42 ÷ 30

This is 1.4, let's convert this to a percentage.
We now times it by 100



1.4 × 100

The answer is 140%
5 0
3 years ago
How many ways can a cook arrange 9 of her 12 spice jars on a spice rack?
pshichka [43]
It depends if the 12 spice jars are all different.

If they are:

_ _ _ _ _ _ _ _ _ (9 spaces)

12*11*10*9*8*7*6*5*4

12 possibilities for first one, 11 for second, etc...

Multiply out to get:
79833600
5 0
3 years ago
Read 2 more answers
Find the value of 2.<br> 47<br> (3x + 2)
steposvetlana [31]

Answer: x = 15

Step-by-step explanation:

Vertical angles are equal so we can set 47 = 3x + 2

Now just solve the equation for x

47 = 3x + 2

Subtract 2 from each side

45 = 3x

Divide both sides by 3

15 = x

7 0
3 years ago
Read 2 more answers
. If f(x) = 3x - x, what is the value of f(7 - 2)?
kifflom [539]

Answer:

10

Step-by-step explanation:

f(x) =3x-x=2x,

f(7-2)=f(5)= 2*5=10

4 0
3 years ago
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