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RoseWind [281]
3 years ago
8

Which of the following equations is not a linear equation?

Mathematics
2 answers:
ElenaW [278]3 years ago
7 0

Answer:

its a

Step-by-step explanation:

Since x=5 is a vertical line, there is no y-intercept and the slope is undefined.

Veseljchak [2.6K]3 years ago
3 0

Answer:

A

Step-by-step explanation:

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What are the coordinates of the vertices of ABC? Use the coordinates to find the lengths of ab and . bc
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The triangle shown is a Pythagorean triple with lengths of 3-4-5.
AC = 3
AB = 4
BC = 5
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3 years ago
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A rectangle is twice as long as it is wide and has the same perimeter as a square whose area is 36 square feet larger than that
Korvikt [17]

Answer:

  • rectangle: 12 ft × 24 ft
  • square: 18 ft square

Step-by-step explanation:

You want the dimensions of a rectangle and square such that they have the same perimeter, but the square has an area of 36 more square feet. The rectangle is twice as long as wide.

<h3>Setup</h3>

Let x represent the side length of the square. Then its area is x², and the area of the rectangle is (x² -36).

This area is the product of length and width. The expression factors as ...

  rectangle area = x² -36 = (x +6)(x -6)

<h3>Solution</h3>

If we assume these factors are the dimensions of the rectangle, then the longer dimension is twice the shorter one:

  (x +6) = 2(x -6)

  18 = x . . . . . . . . . add 12-x to both sides

This is the side length of the square. The rectangle dimensions are ...

  x+6 = 18+6 = 24 . . . . feet long

  x -6 = 18 -6 = 12 . . . . feet wide

The rectangle is 12 feet wide and 24 feet long. The square is 18 feet on a side.

__

<em>Additional comment</em>

The perimeter in each case is 4x = 2((x+6) +(x -6)) = 72 ft.

The area of the rectangle is (12 ft)(24 ft) = 288 ft². The area of the square is (18 ft)² = 324 ft², a value that is 36 ft² more than the rectangle area.

<em>Alternate solution</em>

Using x for the width of the rectangle, the length is 2x and its area is x(2x) = 2x². The perimeter is 2(x +2x) = 6x, so the side length of the square is (6x)/4 = 3/2x and its area is (3/2x)² = 9/4x².

The difference is 36 square feet, so we have ...

  9/4x² -2x² = 36 = x²/4   ⇒   x = √(36·4) = 6·2 = 12 . . . . width of rectangle

8 0
1 year ago
What's the q1 and q2????
Evgen [1.6K]

Answer:

Q1-298

Q2-422

Step-by-step explanation:

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A soccer team lost 30% of its games. Suppose the team won 14 games. How many games did the team play?
-BARSIC- [3]
They would have played 20 games altogether
8 0
3 years ago
What is the value of (–7 + 3i) – (2 – 6i)?<br> –9 + 9i<br> –9 – 3i<br> –5 – 3i<br> –5 + 9i
Mariana [72]
<span>(–7 + 3i) – (2 – 6i)

subtract the like terms.
-7 - 2 = -9

3i - (-6i) = 3i +6i = 9i

The answer becomes -9 + 9i</span>
5 0
3 years ago
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