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4 years ago

Which statement is true about a number and its additive inverse?

Mathematics

2 answers:

netineya [11]4 years ago

8 0

Answer: Option D

Their sum is always zero

Step-by-step explanation:

Given any number x, the additive inverse of x is -x.

For example, the additive inverse of 3 is - 3, the additive inverse of 2.2 is -2.2.

In this way, note that adding a number with the additive inverse of this number will always result in the number zero.

$x + (-x) = 0$

Therefore, the correct option is option D

Over [174]4 years ago

7 0

Answer:

Option D is correct.

Step-by-step explanation:

The additive inverse of a number is the same number with the negative sign

i.e. if we have a number 1 then it's additive inverse would be -1

So if we add both the number and its additive inverse the answer would be zero.

1+(-1) = 0

So, Option D their sum is always zero is correct.

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Find the perimeter P of

nataly862011 [7]

Answer:

P = 3.6 + 6 + 3.6 + 6 = 19.2 units

Step-by-step explanation:

distance between (-3,-2) and (-5,-5) =

Sqrt[(-5-3)^2+(-5 - -2)^2]

Sqrt (4+9) = 3.6

d = (-5,-5) and (1,-5) =

Sqrt[(1 - - 5)^2 + (-5 - - 5)^2]

= sqrt (36 + 0) = 6

d = (1,5) and (3,-2)

Sqrt[(1 - - 3)^2 + (-5 - - 2)^2]

Sqrt(4+9) = 3.6

d = (3,-2) and (-3,-2)

Sqrt[(-3-3)^2 + (-2 - - 2)^2]

Sqrt (36+0) = 6

4 0

3 years ago

Which of the following is the solution to | x| -5< -13 ?

sergey [27]

|x| - 5 < -13
|x| < -13 + 5
|x| < -8

No solution.

6 0

4 years ago

There are 7.48 gallons in a cubic foot. If residents of the apartment building are using the water from the tower at an average

Talja [164]

Answer:

Step-by-step explanation:

So, volume is always cubed since you have l x w x h.

A cubic ft is 12 in x 12 in x 12 in = 1728 in3. If we assumed that the aquarium has a volume of around 35328.78 in squared. Hence,

35328.78/1728 = 20.44

20.44 x 7.48 = 152.89

About 153 gallons

Noted that the water was used at the rate of 56 gallons per minute.

56 gallons -------- 1 minute

153 gallons --------- x minute (s)

56gallon × Xminutes = 153 gallons × 1 minute

X = 153/56

X = 2.7321 minutes

Hence, it will take 2.7321 minutes to drain the tower

6 0

3 years ago

For each of the following use f(x) = 3x, g(x) = 9x + 2.

Ivenika [448]

Answer:

Step-by-step explanation:

f(x)= 3x

x=-3

g(3)=9(3)+2

g(x)=29

7 0

3 years ago

Which relations are functions?

rewona [7]

Answer:

{(2,4), (-1, 7), (3,0), (5,4)}

{(-6, 1), (0, 1), (2, 1), (3, 1)}

{(-3, -3), (-1, 6), (4, 5), (5, 4)}

Step-by-step explanation:

For a relation to be a function, the same x-value can't have multiple y-values.

For this reason, this relation is not a function:

{(-4,0), (-4,8), (-1, 3), (2,9)}

And these are functions:

{(2,4), (-1, 7), (3,0), (5,4)}

{(-6, 1), (0, 1), (2, 1), (3, 1)}

{(-3, -3), (-1, 6), (4, 5), (5, 4)}

5 0

3 years ago