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Serggg [28]
3 years ago
6

PLEASE HELP I WILL GIVE BRAINLIEST PLEASE 20 POINTS

Mathematics
1 answer:
Agata [3.3K]3 years ago
7 0

9514 1404 393

Answer:

  \begin{cases}3x+12&\text{if }x>-4\\0&\text{if }x=-4\\-3x-12&\text{if }x

Step-by-step explanation:

The absolute value function negates its argument when its argument is negative. The expression 3x+12 will be negative when ...

  3x +12 < 0

  x +4 < 0

  x < -4 . . . . . makes the absolute value function change its argument's sign

Using this fact, we can divide the domain into intervals below -4, at -4, and above -4. The above answer shows the function value in each domain interval.

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3 years ago
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Jim Tree sells trees. The mean length of the trees purchased was 68 inches with a standard deviation of 10 inches. Jim wants to
Zepler [3.9K]

Step-by-step explanation:

We know that,

Z=\dfrac{X-\mu}{\sigma}

Where,

X = raw score = 84

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Putting the values,

Z=\dfrac{84-68}{10}=1.6

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4 0
3 years ago
3(2x-5)= 5(x-4)<br>help pls
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This is simple simplifying. If you need an explanation dm me.
here is the answer
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Reagan will use a random number generator 1,200 times. Each result will be a digit from 1 to 6. Which statement best predicts ho
Stolb23 [73]

The answer is B.

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Which statement is the if/then conditional statement of the following? Vertical angles are congruent.
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An if-then statement must hold under any condition. Let's take it case by case:


A. This one makes sense, and is perfect! If two angles are vertical, then they must be congruent. This holds no matter what. This is your answer.


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D. This one is the contrapositive of B, which makes it the exact same as B. Thus, this is not the answer. Contrapositive, by the way, just means that it's the inverse and opposite of a given statement. Let's say P is the contrapositive of Q. If this is the case, then if Q is true, P must be true. In our case, Option D is the contrapositive of Option B and since Option B is not true, neither is D.


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