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skelet666 [1.2K]
2 years ago
12

Katy decorated 4 dozen cookies in

Mathematics
1 answer:
lions [1.4K]2 years ago
3 0
8 30 min I think ....
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−5(x + 4) + 21 ≥ −3 + 4(x − 8)
wariber [46]

Step-by-step explanation:

-5x - 20 +21 > - 3 +4x - 32

-5x +1 > 4x - 35

-5x +4x > - 35 +5

-1x>-30

Divide by - 1

x >30

Am I right??

8 0
3 years ago
Read 2 more answers
Let P be a predicate. Determine whether or not each of the following implications is true and give a brief English explanation f
den301095 [7]

Answer:

See answer below

Step-by-step explanation:

1), Probably, your implication is ∀x∃yP(x,y)⇒∃x∀yP(x,y).

This implication is false. Consider the predicate P(x,y):="x<y" for real numbers x,y. Then, ∀x∃yP(x,y) is true: for all real x, there exists some y greater than x (take y=x+1 for example). However, ∃x∀yP(x,y) is false, as it would imply that there exists some real number x such that x is smaller than all real numbers, which is not true (real numbers do not have a minimum or a lower bound).

A short explanation would be, even if for all elements you can find one that makes a predicate true, you can not find one element that makes the predicate true for all elements.

2) Again, I assume that the predicate is ∃x∀yP(x,y)⇒∀x∃yP(x,y)

This implication is false. Consider the predicate P(x,y):="x is integer and xy=0 " for real numbers x,y. Then ∃x∀yP(x,y) is true, we need to take x=0. However, ∀x∃yP(x,y) is false, if you take x=1/2, 1/2 will never be an integer, no matter the value of y.

A short explanation would be, even if you can find one element that makes a predicate true for all elements, you can not always take an arbitrary element and find some element that makes the predicate true.

6 0
3 years ago
A gym floor has a perimeter of 1,935 feet, what is the perimeter in yards? (PLEASE HELPPP!!!!! Is with time!!!!)
tangare [24]

Answer:645yards

Step-by-step explanation:  1 foot is 0.33333333 and math also the Convert units tab in google

6 0
3 years ago
Darla spent $120.37 on groceries in January, $108.45 in February, and $114.86 in March. What was the average monthly cost of Dar
MaRussiya [10]
The average of her grocery shopping is $114.56. How you get the average is you add all of the numbers together and divide by how many numbers there are. And in this case, there were 3 numbers. Hope this helps! :)
3 0
3 years ago
Read 2 more answers
What is 7/12 of a full rotation
Ludmilka [50]
A full rotation is 360<span>°

7/12 of 360 is 210


Hope this helped! (:
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8 0
3 years ago
Read 2 more answers
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