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Kipish [7]
3 years ago
5

Problem solving your family has a rectangular pool that measures 18 feet by 9 feet. your family wants to put a deck around the p

ool but is not sure how wide to make the deck. determine how wide the deck should be when the total area of the pool and deck is 400 square feet. what is the width of the deck?
Mathematics
1 answer:
tester [92]3 years ago
7 0
Let w be the width of the deck. Then, using the total area, we get:
(9+2w)(18+2w)=400
4w²+54w-238=0
2w²+27w-119=0
(2w-7)(w+17)=0
w=-17 or 7/2
Using the positive value, we get a width of 3&1/2 ft. for the deck
☺☺☺☺
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Answer:

A'(1,-5)

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(x,y)\rightarrow(y,x)


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This implies that,


A(-5,1)\rightarrow A'(1,-5)


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Therefore the correct answer is A.

A'(1,-5)

8 0
3 years ago
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A 50-gal tank initially contains 20 gal of pure water. Salt- water solution containing 0.5 lb of salt for each gallon of water b
icang [17]

Answer:

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So, the equation for volume at cetain time t at given conditions and values becomes,

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x(15) = 21 lb

4 0
3 years ago
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