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3 years ago

BRAINLIEST, THANKS AND 5 STARS IF ANSWERED BOTH CORRECTLY

Mathematics

2 answers:

ratelena [41]3 years ago

6 0

Answer:

Numer 1

A) (-5, -4), (-4, -3), (-3, -2), (-2, -1) Is a function

Number 2

C) (-5, -1), (-2, -1), (1, -1), (4, -1) is a function

olga2289 [7]3 years ago

4 0

in a function, all elements in domain "x" should have a pre-image "y" and they should be unique (one x can have only one value of y, but more than one x can have same same value of y) for all ordered pair (x,y)

it's not clearly possible to tell without knowing the actual set but with given information,

1. A

2. C

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−2(2x+3)≤26 - 2 2 x + 3 ≤ 26 ?

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$\huge \boxed{\mathbb{QUESTION} \downarrow}$

$- 2 ( 2 x + 3 ) \leq 26.$

$\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}$

$- 2 ( 2 x + 3 ) \leq 26$

Divide both sides by -2. We know that since 2 is negative, it'll be < (less than) 0. So, the direction of inequality will change.

$2x+3\geq \frac{26}{-2} \\$

Divide 26 by -2..we'll get the answer as -13.

$2x+3\geq -13$

Now, subtract 3 from both the sides.

$2x\geq -13-3$

Subtracting -13 by 3..we'll get the answer as -16.

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$x\geq \frac{-16}{2} \\$

Divide -16 by 2..we'll get the answer as -8.

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The correct answer is ⇨ x greater than or equal to -8.

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2 years ago

To convert a fraction into a decimal number, divide the denominator by the numerator.

yanalaym [24]

Answer:

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Step-by-step explanation:

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