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Aleks [24]
3 years ago
8

The length of a rectangle is 1 less than twice the width.

Mathematics
2 answers:
vladimir1956 [14]3 years ago
7 0

w-width\\2w-1-length\\w(2w-1)=2w^2-w-the\ area\\28\ ft^2-the\ area\\\\\text{The equation:}\\\\2w^2-w=28\qquad\text{subtract 28 from both sides}\\\\2w^2-w-28=0\\\\2w^2-8w+7w-28=0\\\\2w(w-4)+7(w-4)=0\\\\(w-4)(2w+7)=0\iff w-4=0\ \vee\ 2w+7=0\\\\w-4=0\qquad\text{add 4 to both sides}\\\boxed{w=4}\\\\2w+7=0\qquad\text{subtract 7 from both sides}\\2w=-7\qquad\text{divide both sides by 2}\\w=-3.5

Alex73 [517]3 years ago
3 0

Answer:

equation = 2w^2- w- 28 =0

length =7

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3 years ago
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pav-90 [236]

Answer: -8x^3y^2  (choice B)

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3 years ago
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The best deal is the middle one.

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You can do this the straight forward way. Take 20% 35.95

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35.95 - 7.19 = 28.76

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Gemiola [76]

Answer:

Step-by-step explanation:

volume=πr^2h

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=7 in.

8 0
2 years ago
Read 2 more answers
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