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Alchen [17]
3 years ago
7

X(4x-3)=0 A. {-3/4, 0} B. {3/4,0} C.{3/4}

Mathematics
1 answer:
svet-max [94.6K]3 years ago
7 0

Answer:

B. {3/4,0}

Step-by-step explanation:

x(4x - 3) = 0 \\ x = 0 \:  \: or \:  \: 4x - 3 = 0 \\ x = 0 \:  \: or \:  \: x =  \frac{3}{4}  \\ x =   \bigg\{ \frac{3}{4},  \:  \: 0  \bigg\}

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A home improvement contractor is painting the walls and ceiling of a rectangular room. The volume of the room is 875.00 cubic fe
Reika [66]

Answer:

The room dimensions for a minimum cost are: sides of 10 feet and height of 8.75 feet.

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With this equation we can define y in function of x as:

x^2y=875\\\\y=\dfrac{875}{x^2}

The cost of wall paint is $0.08 per square foot. We have 4 walls which have an area Aw:

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The cost of ceiling paint is $0.14 per square foot. We have only one ceiling with an area:

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The room will have sides of 10 feet and a height of 8.75 feet.

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4 years ago
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