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Nutka1998 [239]
4 years ago
7

Factor completely.4x^2 + 36xy + 81y^2​

Mathematics
1 answer:
nalin [4]4 years ago
5 0

Answer:

(2x + 9y)^2

Step-by-step explanation:

First: rewrite

2x^2 + 2 * 2x * 9 + (9y)^2

Then: (2x + 9y)^2

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What is 345 2/5 x 14 3/5
defon

Answer:

Exact Form:

126071/25

Decimal Form:

5042.84

Mixed Number Form:

5042 21/25

<u><em>I hope that helped at all.</em></u>

5 0
3 years ago
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A 14​-foot piece of string is cut into two pieces so that the longer piece is 2 feet longer than twice the shorter piece. If the
Maurinko [17]
We are given that the shorter piece is x
From your description, the longer piece is 2x + 2
The total length is
x + 2x + 2 = 14
ie
3x + 2 = 14
3x = 12
x = 4

So the length of the shorter piece is 4 ft
Therefore the length of the longer piece must be
(14 - 4) ft = 10 ft
8 0
3 years ago
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37. Rectangle ABCD is graphed on a coordinate
Firlakuza [10]

AC # A'B'

Step-by-step explanation:

While solving the above problem one must keep in mind that

  • Reflection along Y-axis would just make the rectangle upside down at the same distance from X-axis in the down direction.

Thus, from the figure it becomes clear that

  • AB ∦ B’D’
  • CD║A’B’
  • BD ∦ C’D’

Only statement that comes out true is the third statement which states that AC is not parallel to A’B’

Since the diagonal of a rectangle can not be parallel to one of its side (though the side in question is side of the same rectangle reflected in y axis)

6 0
3 years ago
Last week Laura volunteered at the community cleanup event and her two patches for her school uniform she spent four minutes doi
kogti [31]

Answer:

12 minutes

Step-by-step explanation:

Time spent for 2 patches = 4 minutes

Time spent for 1 patch = 4 / 2 = 2 minutes

Time spent for 6 patches = 2 x 6 = 12 minutes

8 0
3 years ago
Solve for x<br> x^2 - 7x + 10 = 0​
Artist 52 [7]

Answer:

Step-by-step explanation:

x²-7x+10=0

(x-2)(x-5)=0

x=2 or x=5

8 0
3 years ago
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