MATHEMATICS MIDDLE SCHOOL

Which sets of numbers are closed under addition?Choose all answers that are correct.

A.
whole numbers

B.
natural numbers

C.
negative integers

D.
integers

Answers

Answer 1
Answer: All of the answers are correct because when ever you add any of these numbers to themselves, the answer will always be from that set of numbers. For example, negative+negative= negative. Hope this helped!
Answer 2
Answer:

I think it's A. whole numbers

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Can someone please help me with this ASAP.(picture included) thx ;)

Answers

The answer for the first quartile would be 51.5

Use each of the digits 2,3,5, and 8 once with any combination of + ,- ,· ,÷, or ( ) to write an expression with a value of 104. You can repeat operations, but not numbers.

Answers

(5*2+3)*8=104 
because 5*2 equals 10 and
10+3 equals 13 and then
13*8 equals 104

A warehouse has 518 flash drives on hand. The warehouse manager decides to keep 50 flash drives for high-priority orders and fill six equal-size orders with the rest of the flash drives. How many flash drives are in each order? A. 36 B. 78 C. 86 D. 94

Answers

Answer:

The answer is option B : 78.

Step-by-step explanation:

A warehouse has 518 flash drives on hand.

The warehouse manager decides to keep 50 flash drives for high-priority orders and fill six equal-size orders with the rest of the flash drives.

So, remaining flash drives are = 518-50=468

As there are 6 equal-size orders, so there will be (468)/(6)= 78 flash drives in each box.

Therefore, the answer is option B : 78.
B. 78 flash drives are in each order

There are 2 loaf of bread in each row how many loaves of bread are there in 5 rows

Answers

There are 2 loaves of bread in each row. To find out how many loaves of bread are in five rows, we have to multiply the number of loeaves of bread in each row (2) by the number of rows (5). 2 x 5 = 10 Thus, there are 10 loaves of bread in 5 rows. Hope this helps! :)
There are 10 loafs of bread in five rows, because 5 times 2 equals 10

Which answer shows 2.13786x10^4 written in standard form

Answers

Answer:

21378.6

Step-by-step explanation:

Since the exponent is positive move to the right.  

2_1_3_7_8.6

What is the answer


show work

2(x - 1)^2 +4=16

Answers

Using quadratic formula:
2(x^2-2x + 1) +4=16
2x^2-4x+6=16
2x^2-4+6-16=0 (then divide both sides by 2)
X^2 -2x- 5= 0
Then use quadratic formula
Answer is;
x = 1 + square root of 6
x = 1 - square root of 6
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