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gulaghasi [49]
3 years ago
7

Which numbers are a distance of 3 units from 12 on a number line? A number line ranging from negative 5 to 17. Select each corre

ct answer.

Mathematics
2 answers:
spin [16.1K]3 years ago
4 0

The distance between A and B is d = |B - A|

We have d = 3 and A = 12.

Substitute:

|B-12|=3\iffB-12=3\ \vee\ B-12=-3\qquad|\text{add 12 to both sides}\\\\B=15\ \vee\ B=9

<h3>Answer: 9 and 15.</h3>

aliya0001 [1]3 years ago
3 0

Answer:

(11) (-3) i took the test

Step-by-step explanation:

please mark me as brainlyist

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Daniel is currently 26 years older than his son. In sic years he will be tree times older than his son. How old are both of them
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3 years ago
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A town is planning a playground. It wants to fence in a rectangular space using an existing wall. What is the greatest area it c
777dan777 [17]

Answer:

1250 ft^{2}

Step-by-step explanation:

We are given that the playground is fenced on three sides of the playground and the four side has an existing wall.

Let the length of the rectangle be 'X' feet and width be 'Y' feet.

As the fencing is done using 100 feet of fence. We get the relation between the sides and the fence as, X + 2Y = 100.

As, X + 2Y = 100 → X = 100 - 2Y

Now, the area of the rectangle = XY = X × ( 100 - 2Y ).

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The general form of a quadratic equation is y=ax^{2}+bx+c.

The maximum value of a quadratic equation is given by x=\frac{-b}{2a}.

Therefore, the greatest value of -2Y^{2} +100Y is at Y = \frac{-100}{2 \times -2} = \frac{-100}{-4} = 25.

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Hence, the area of the rectangle is XY = 50 × 25 = 1250 ft^{2}.

3 0
3 years ago
A box of cereal costs $3.49. How much do a dozen boxes of cereal cost?
antiseptic1488 [7]

Answer:

41.88

Step-by-step explanation:

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7 0
2 years ago
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WILL MARK BRAINLIEST PLEASE HELP
Softa [21]

Answer:

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3 years ago
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