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Paladinen [302]
3 years ago
11

Pls urgently answer

Mathematics
1 answer:
adoni [48]3 years ago
6 0

Answer:

this is hard so ima go with [2/-2] [-2/2] [1/-1] [-3/3]

Step-by-step explanation:

cause ordered pairs have a negative and a positive with same number

ya YEET fellow peep (╯°□°)╯︵ ┻━┻

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Mariah’s parents got into a car accident. They took their car to the
KatRina [158]

Answer: The mechanics spent about 8.5 hours working on the car

Step-by-step explanation: The total bill was $637, a portion of that being getting the parts which was $280. 637-280=357

357/42=8.5

5 0
3 years ago
Which set is closed under subtractionWhich answer choice shows that the set of irrational numbers is not closed under addition
vovikov84 [41]

Answer:

(a) Set of rational numbers

(b) \pi + (-\pi) = 0

Step-by-step explanation:

Solving (a): Set that is closed under subtraction

The solution to this is rational numbers.

For a set of number to be closed under subtraction, the following condition must be true

a -b = c

Where

a, b, c are of the same set.

The above is only true for rational numbers.

e.g.

1 - 2 = -1

5 - 5 = 0

\frac{1}{2} - \frac{1}{4} = \frac{1}{2}

4 - 2 = 2

The operations and the result in the above samples are rational numbers.

Solving (b): Choice not close under addition[See attachment for options]

As stated in (a)

For a set of number to be closed under subtraction, the following condition must be true

a -b = c

Where

a, b, c are of the same set.

In the given options (a) to (d), only

\pi + (-\pi) = 0 is not close under addition because:

\pi is irrational while 0 is rational

<em>In other words, they belong to different set</em>

8 0
2 years ago
The average age of a preschool class is 4.5 years old. If there is one 3-year-old, five 5-year-olds, and two other children both
kompoz [17]

Answer:

3.1

Step-by-step explanation:

5 x5 =25

25+3=28

8 0
3 years ago
Read 2 more answers
I need help please:):)
andrey2020 [161]

Answer:

(0,0)

Step-by-step explanation:

y value divided by x value for slope, then use desmos

4 0
3 years ago
I need help please ​
makkiz [27]

Answer: lmk

Step-by-step explanation:

8 0
3 years ago
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