Find the value of x and y.

Mathematics

1 answer:

RideAnS [48]3 years ago

4 0

Answer:

x = 30

y = 2

Step-by-step explanation:

Please note: the value for x is correct only if this triangle is a right triangle.

This can be solved because 2(5y) = 20 and because if a triangle has all congruent angles then its side lengths are also congruent.

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Combine the like terms in this expression: –3x + 2xy + 4y – xy + 2x – 11y A. 2xy + 15 B. –7xy C. –X+XY–7y D. 23X + y

s344n2d4d5 [400]

Answer:

The correct option is C) –x + xy – 7y.

Step-by-step explanation:

Consider the provided expression.

Rearrange the expression so, that like terms comes together.

–3x + 2x + 2xy – xy + 4y – 11y

Now, add the like terms as shown below:

x(–3 + 2) + xy(2 – 1) + y(4 – 11)

Now, perform the operation inside the parentheses.

x(–1) + xy(1) + y(–7)

Open the parentheses.

–x + xy –7y

Now, compare with the provided options.

By comparison it can be concluded that the correct option is C).

Hence, the correct option is C) –x + xy – 7y.

7 0

4 years ago

Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x2 + 1 inches, and

yanalaym [24]

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Given information
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Side length of a square = 2x² + 1
Perimeter of the square = 4(2x² + 1)

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If x = 3.5, find perimeter
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Perimeter of the square = 4(2(3.5)² +1)
Perimeter of the square = 4(2(12.25) +1)
Perimeter of the square = 4(24.5 +1)
Perimeter of the square = 4(25.5)
Perimeter of the square = 102 inches

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Answer: Margot will need 102 inches of the ribbon.
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5 0

3 years ago

Read 2 more answers

Which of the following is a solution of 4x + 5y ≤ 20?

Sphinxa [80]

For this case we must replace each of the points and verify if the inequality is met:

Point: (5,7)

$4 (5) +5 (7) \leq20\\20 + 35 \leq20$