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Fantom [35]
3 years ago
8

1.) Explain how u can use absolute value to tell whether the sum of two integers is positive or negative?

Mathematics
2 answers:
stealth61 [152]3 years ago
6 0

Answer:

To find the sum of a positive and a negative integer, take the absolute value of each integer and then subtract these values. The result takes the sign of the integer with the larger absolute value. The sum of any integer and its opposite is equal to zero.

UkoKoshka [18]3 years ago
3 0

Answer with explanation:

Absolute value of any number=Always Positive

⇒Suppose,a and b are two integers.Then

→|a|-|b|

--If a> b, then |a|-|b|=a-b, will be Positive.

--If, a<b, then |a|-|b|=a-b, will be Negative.

→If we calculate

  |a|+|b|=a+b

it will be always positive.

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a wheel has a diameter of 15cm. The wheel travels 50 metres. How many revolutions does the wheel complete?
TEA [102]

Answer:

106

Step-by-step explanation:

The diameter of the wheel is 15 cm or 0.15 m.

The circumference of the wheel is 0.15π m ≈ 0.47 m.

So the wheel moves 0.47 m with each revolution.

The wheel travels 50 m, so the number of revolutions is:

(50 m) / (0.47 m/rev) ≈ 106 revolutions.

8 0
3 years ago
What is the graph of this function?<br> y = |x|
melamori03 [73]

Answer:

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Step-by-step explanation:

6 0
2 years ago
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What is the simplet form of 7<br> —<br> 12?
inysia [295]

Answer:

-5

Step-by-step explanation:

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6 0
3 years ago
A. The solution is (−2,−3)
Cerrena [4.2K]

9514 1404 393

Answer:

  D.  (-3, -2)

Step-by-step explanation:

The equations have different coefficients for x and y, so will have one solution. The solutions offered are easily tested in either equation.

Using (x, y) = (-2, -3):

  x = y -1  ⇒  -2 = -3 -1 . . . . False

Using (x, y) = (-3, -2):

  x = y -1  ⇒  -3 = -2 -1 . . . .True

  2x = 3y  ⇒  2(-3) = 3(-2) . . . . True

The solution is (-3, -2).

__

If you'd like to solve the set of equations, substitution for x works nicely.

  2(y -1) = 3y

  2y -2 = 3y . . eliminate parentheses

  -2 = y . . . . . . subtract 2y

  x = -2 -1 = -3

The solution is (x, y) = (-3, -2).

5 0
2 years ago
Define a variable and write an expression for the phrase.
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3 years ago
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