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kenny6666 [7]
3 years ago
8

Are positive integers closed under subtraction?

Mathematics
2 answers:
Galina-37 [17]3 years ago
8 0
Do you remember the answer..? I need help as well.
Flura [38]3 years ago
6 0
#1 not closed
#2 closed
#3 not closed
#4 not closed
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What is the range for this data set?<br> 22, 7, 14, 13, 38, 12, 19, <br> 17, 49, 13, 9, 18, 36​
Degger [83]

Answer:

from 7 to 49 or (7, 49)

Step-by-step explanation:

Range means the limit of the data set. Basically, the low part of the range is the lowest number in the set and the high part of range is the highest part.

5 0
2 years ago
Given 2x^2=-8, x is<br><br> A.-2<br> B. 2<br> C. 2i or -2i<br> D. 4i or -4i
Lera25 [3.4K]

Answer:

2i or -2i

Step-by-step explanation:

2x² = -8     First, clear x.

x² = -8/2    Solve

x² = -4        Now, eliminate the square of x by solving the square root of -4.

x = √-4

x = 2i or -2i Is an imaginary number.

4 0
3 years ago
Read 2 more answers
Evaluate 3/7 r + 5/8 s when r is 14 and s is 8
forsale [732]

Answer:

11

Step-by-step explanation:

Making the appropriate substitutions, we get

3/7 r + 5/8 s  =>  3/7 (14) + 5/8 (8).

Notice how this can reduced:

                             3(14)            5(8)

                           ----------- +     ---------   =   6 + 5 = 11

                                  7                8

6 0
3 years ago
If anybody could help me please :,) will give brainliest + 100 points
Alinara [238K]

Answer:

P(B and D) = 0.35

Step-by-step explanation:

It is a probability tree diagram. Here to find P(B and D):

apply method:

P(A and B) = P(A) × P(B)

Here given:

  • P(B) = .5
  • P(D) = .7

So, P(B and D):

  • P(B) × P(D)
  • .5 × .7
  • .35 ≈ 0.35
8 0
2 years ago
Sam is 187cm tall how many metres is this?
pishuonlain [190]
187 centimeters is 1.87 meters
8 0
3 years ago
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