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LiRa [457]
3 years ago
11

COME ON LASTTT ONESSSSSSSSSSSSSSS

Mathematics
1 answer:
GuDViN [60]3 years ago
8 0

Answer:

Answer

Correct option is

D

all of the above

For any two rational numbers a and b,  

(a+b),(a−b),(b−a) & (a×b) are all rational numbers.

Thus, rational numbers are closed under addition, subtraction and multiplication.(for the first one)

Answer:

The sum of x and y is a rational number

Step-by-step explanation:

X+Y or 5+7=12

A rational number is any number that can be divided without going on and on forever. ( for the 2nd one)

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What times -1/2 x what = -20?
Radda [10]

Answer:

40

Step-by-step explanation:

Let the number be y

-1/2 × y = -20

y = -20 ÷ -1/2

y = 20 × 2

y = 40

6 0
2 years ago
Solve the problem<br> -4p - 4p
Minchanka [31]

\bold{Hey\  there!}

\bold{-4p - 4p = \ ?}\\\ \bold{-4 - 4 = -8}\\\bold{-p - p = -p}\\\bold{-4p - 4p=\underline{-8p}}\\\boxed{\boxed{\bold{Answer: -8p}}}\checkmark

\text{\bold{Good luck on your assignment and enjoy your day!}}

~\frak{LoveYourselfFirst:)}

6 0
3 years ago
Read 2 more answers
Which number line is it?
Allushta [10]
Answer is A. first one...

P = -3
G = 3

P = -G = -(3) = -3
0 0
3 years ago
The manager at a golf course found that the population mean length of the holes at the golf courses is 415.9 yd. In this​ contex
tekilochka [14]

The manager at a golf course found that the population mean length of the holes at the golf courses is 415.9 yd. In this​ context, is the number 415.9 a parameter or a​ statistic?

Answer: The number 415.9 is a parameter because it represents the population characteristic.

<u>Explanation:</u>

Parameter: Parameters are numbers that summarize the entire population. For example the population mean summarizes the entire population, similarly population standard deviation describes the characteristic of entire population.

Statistic: Statistic are numbers that describes the sample. For example, the sample mean summarizes the sample which is drawn from the population, similarly the sample standard deviation describes the characteristic of sample.

Therefore, the population mean length of the holes at the golf courses (415.9 yd) is parameter.

4 0
3 years ago
A. 3s<br> B. s^2<br> C. s + 1<br> D. 2s + 1
Anna11 [10]
The answer is most likly to be B.
3 0
3 years ago
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