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N76 [4]
3 years ago
15

which expression represents the perimeter of the rectangle above? (3x-3)(3x-1) a.6x+2 b.12x-8 c.6x-4 d.12x+2

Mathematics
2 answers:
In-s [12.5K]3 years ago
4 0
Perimeter of rectangle is calculated by taking the sum of all the sides of the rectangle. In rectangles the 2 opposite sides are equal 
length  - 3x - 1
breadth - 3x - 3
the formula used to calculate perimeter for rectangle 
perimeter = (2 x length) + (2 x breadth)
substituting length and breadth 
perimeter = {2 x (3x - 1)} + {2 x (3x - 3)}
                = 6x - 2 + 6x - 6 
                = 12x - 8
therefore correct answer is 
<span>b.12x-8</span>
Ainat [17]3 years ago
4 0
{(3x-3)+(3x-1)}*2 = (6x-4)*2 = 12x-8
so b is correct.
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Help please problem is worded weird
Vadim26 [7]

Answer:100

Step-by-step explanation:

Expand

x = 150 - 0.5x

Add 0.5x to both sides

x + 0.5x = 150

Simplify x + 0.5x to 1.5x

1.5x = 150

Divide both sides by 1.5

x = 150/1.5

Simplify 150/1.5 to 100

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3 years ago
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What is the general equation of a tilted ellipses not centered at the origin?
ICE Princess25 [194]

The general equation of an ellipse in which case it is not centered at the origin and it is tilted is; (x-h)²/a² + (y-k)²/b² = 1.

<h3>What is the general equation of a tilted ellipses not centered at the origin?</h3>

It follows from the task content that the plane shape in discuss is an ellipse which is described by the characteristics that it is tilted and not centered at the origin.

It follows from convention that the general equation of such an ellipse is;

(x-h)²/a² + (y-k)²/b² = 1.

In which case, such an ellipse has center given as point; (h, k).

Read more on ellipse;

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2 years ago
On a trip to visit friends, a family drives 65 miles per hour for 208 miles of the trip. If the entire trip was 348 miles and to
vodka [1.7K]
From information given, we know
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4 0
3 years ago
The marked price of a television set is #480. What is the sale price if a discount of 15% is given?
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Answer:

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Step-by-step explanation:

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7 0
3 years ago
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IRINA_888 [86]

Change in the amount of water in the bathtub after -48.75 gallons. Negative sign means water get reduce by 48.75 gallons in bathtub.

<h3><u>Solution:</u></h3>

Given that

A clogged bathtub drains at a constant rate.

The amount of water in the bathtub changes by –3.75 gallons in one hour.

Need to determine change in the amount of water in the bathtub after 13 hour.

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