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3 years ago

Give one real world example where you would use absolute value.

Mathematics

2 answers:

Reika [66]3 years ago

8 0

Distance measurements

Alona [7]3 years ago

8 0

One example of absolute value in the real world is subtraction.
For example, you have 17_____ and your friend has 62_____.
if you want to see how many more _____ your friend has, you want to make sure that the answer will be positive. The way that you do this is you subtract |17 - 62| = 45
(I know.... You could just do 62 - 17, but absolute value can be used so you can subtract |a - b| and |b - a|, and they will turn out the same.)

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Find the value of k and x2 x^2+ 13x + k = 0, x1=-9

Anarel [89]

Given:

The quadratic equation is:

$x^2+13x+k=0$

$x_1=-9$

To find:

The value of k and $x_1$ .

Solution:

We have,

$x^2+13x+k=0$ ...(i)

Putting $x=-9$ , we get

$(-9)^2+13(-9)+k=0$

$81-117+k=0$

$-36+k=0$

$k=36$

Putting $k=36$ in (i), we get

$x^2+13x+36=0$

Splitting the middle term, we get

$x^2+9x+4x+36=0$

$x(x+9)+4(x+9)=0$

$(x+9)(x+4)=0$

$x=-9,-4$

Here, $x_1=-9$ and $x_2=-4$ .

Therefore, the required values are $k=36$ and $x_2=-4$ .

3 0

3 years ago

3-7= 4-6= 3+-6= 4--1= -5+-5= -3+5= -4-6=

kipiarov [429]

Answer:

Answers are below

Step-by-step explanation:

3 - 7 = -4

4 - 6 = -2

3 + -6 = -3

4 - - 1 = 5

-5 + -5 = -10

-3 + 5 = 2

-4 -6 = -10

Hope this helps!!

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3 years ago

1,500 grams to kilograms

kakasveta [241]

1,500 grams is equal to 1.5 kilograms

8 0

3 years ago

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Bumek [7]

POINT A I had the same question in my math class !!!

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3 years ago

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Mars2501 [29]

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All inner angles must add to 180 degrees since it's a triangle.
70+70+x=180
140+x=180
x=40

Final answer: D

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3 years ago

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