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Svetach [21]
1 year ago
14

A rectangles width is 1/4 of its length. It’s area is 9 square units. The equation l(1/4l) =9 can be used to find l, the length

of the rectangle, why is the length of the rectangle?
Mathematics
1 answer:
Zielflug [23.3K]1 year ago
3 0

Answer: the answer is 6

Step-by-step explanation: because 6/4 = 1.5 and 1.5• 6 =9

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OverLord2011 [107]

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3 years ago
Are the ratios 1:2 and 10:20 equivalent <br><br><br>YES OR NO​
nignag [31]

Answer:

yes

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6 0
2 years ago
Read 2 more answers
Which of the following expressions can be factored by grouping? (Select all that apply.)
Greeley [361]

Answer:

Options (3), (4) and (5)

Step-by-step explanation:

1). a² - 9a + 7ab + 63b

  = a(a - 9) + 7b(a + 9)

  Now we can not solve this problem further.

  Therefore, can't be factored by grouping.

2). 3a + 4ab - b - 12

   = a(3 + 4b) - 1(b - 12)

   We can't solve it further.

   Therefore, can't be factored by grouping.

3). ab + 6b - 2a - 12

   = b(a + 6) - 2(a + 6)

   = (b - 2)(a + 6)

  We can be factored this expression by grouping.

4). x³ + 9x²+ 7x + 63

   = x²(x + 9) + 7(x + 9)

   = (x² + 7)(x + 9)

   Therefore, the given expression can be factored by grouping.

5). ay² + a - y² - 1

  = a(y² + 1) - 1(y² + 1)

  = (a - 1)(y² + 1)

  This expression can be factored by the grouping method.

Options (3), (4) and (5) are the correct answers.

3 0
3 years ago
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