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pochemuha
2 years ago
12

Help needed pls

Mathematics
1 answer:
Licemer1 [7]2 years ago
5 0

The area of rectangle ABCD can be expressed in simplified form as: 8y^2 - 10y.

<h3>How to Calculate the Area of a Rectangle?</h3>

The area of a rectangle is calculated using:

Area = (length)(height).

We are given the following:

Length of rectangle ABCD = side DC = 4y - 5

Height of rectangle ABCD = side AD = 2y

The area of rectangle ABCD = (length)(height) = (4y - 5)(2y).

Expand the expression

The area of rectangle ABCD = 2y(4y) - 2y(5) [distributive property of multiplication]

The area of rectangle ABCD = 8y^2 - 10y

Thus, the area of rectangle ABCD can be expressed in simplified form as: 8y^2 - 10y.

Learn more about area of rectangle on:

brainly.com/question/25292087

#SPJ1

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4(k+1)=k+10,then 3k=<br><br>A. 3/2<br>B.5/2<br>C. 2<br>D. 6​
nasty-shy [4]

Solution:

<u>Note that:</u>

  • Given equation: 4(k + 1) = k + 10
  • To find: 3k

<u>Simplifying the LHS:</u>

  • 4(k + 1) = k + 10
  • => (4 x k) + (4 x 1) = k + 10
  • => 4k + 4 = k + 10

<u>Subtracting k and 4 both sides:</u>

  • 4k + 4 - k - 4 = k + 10 - k - 4
  • => 3k = 6 (No further solution required)

The value of 3k is 6.

3 0
3 years ago
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3 years ago
Solve for x<br> 1 7 1<br> 2<br> х<br> Your answer
ki77a [65]

Answer:

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Step-by-step explanation:

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-2 + 9 = 7 so now its 3x - 5 = 7

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divide 12 ÷ 3 = 4

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8 0
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