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8090 [49]
3 years ago
12

What is the product? (-2d^2+s)(5d^2-6s)

Mathematics
1 answer:
wlad13 [49]3 years ago
5 0

The answer is −10d4+17d2s−6s2

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A rectangular rug has a perimeter of 460 meters. The width of the rug is five meters more than 4 times the length. Find the
Paladinen [302]

Answer:

Length = 45 m

Width = 185 m

Step-by-step explanation:

Given:

Perimeter of rectangular rug = 460 m

width of the rug is five meters more than 4 times the length

To find:

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Solution:

Let the length = l m

As per given statement,

Width = 4l+5 m

Formula for perimeter of a rectangle = 2\times (Length +Width)

460=2\times (l+4l+5)\\\Rightarrow 230 = 5l+5\\\Rightarrow l = \dfrac{225}{5} = 45\ m

Width = 4l+5 m

Width = 4\times 45+5 = 185\ m

So, the answer is:

<em>Length = 45 m</em>

<em>Width = 185 m</em>

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6 0
3 years ago
7а — За +2а — а = 16
dezoksy [38]

Answer:

(7a-3a)+(2a-a)=16

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5a/5=16/5

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solving like terms or substract are same

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