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Luba_88 [7]
2 years ago
5

Explain the difference in meaning between 1-3 and -3

Mathematics
1 answer:
sveticcg [70]2 years ago
7 0

Answer:

The difference in meaning is that

-3 is a signed value. It lies to the left of zero

+3 is also a signed value, and since it is positive, it lies to the right of zero

|-3| is just the physical distance (left or right) of -3 from zero. Since we live in a physical world, all distances are positive, so its signed value is 3.

Since +3 is also 3 units from zero, |+3| = 3

|-3| = |+3| = 3 since both are three units away from zero.

So, when using absolute values as numbers, rather than distances,

|x| = x if x is not negative

|x| = -x if x is negative

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Which of the following is an arithmetic sequence?
MaRussiya [10]
Answer: {2, -2, -6, -10}

Arithmetic sequences are defined by a common difference between the numbers that’s both constant and consecutive.

To break it down:

The first option is {-1, 3, -3, -1}, which appears to be alternating, and there is more than 1 difference between the n term values. That is:

-1 to 3 = increase of 4
3 to -3 = decrease of 6
-3 to -1 = increase of 2

Therefore does not follow the definition of an arithmetic sequence.

The second option (the answer) {2, -2, -6, -10} is arithmetic, as it consistently and thus consecutively decreases by 4.

Finally, the last two sequences have the same issue with their pattern, {3, 6, 9, 15}
and {4, 14, 24, 32}. In which they stay constant for the first three n terms, but suddenly change in value on the 4th n term. Therefore, they are not arithmetic.

I hope this helped!
8 0
3 years ago
Brainliest!!! CORRECT and fast answers. :)
Vladimir79 [104]

Answer:

A.  2 units left and 3 units up

Step-by-step explanation:

2 from x is taken away and thus shifts 2 to the left

3 is added to the eventual y value and thus shifts 3 upward

6 0
3 years ago
The population of rabbits in a national forest is modeled by the formula P= 12,000 + 1000 (t+1) where t is the number of years f
V125BC [204]
In this formula, 1000(t+1) represents the growth rate of the rabbits.  We want the number right now, so sub in 0 for t.

P=12,000+1000(0+1)
P=12,000+1000
P=13,000 rabbits.
Hope this helps!!!
4 0
3 years ago
Joe has a 28 foot long board. He needs to cut it into 24 equal length parts.How many feet should each section of the board be?
Ilya [14]
28 divides by 24 is 1.1666667 which rounds to 1.17 <——answer
6 0
3 years ago
I WILL GIVE BRAINLIEST TO FIRST RIGHT ANSWER
nikitadnepr [17]

Answer:

  • 5.7 m/s

Step-by-step explanation:

<u>Approximate rate of change:</u>

  • (25.1 - 2.3)/(4 - 0) =
  • 22.8/4 =
  • 5.7 m/s
5 0
2 years ago
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