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2 years ago

The length of a rectangular pool is 4yds longer than twice the width. If the area is 70 square yards, find the dimensions.

Mathematics

2 answers:

Aneli [31]2 years ago

6 0

L is equal to 10
W is equal to 6

kodGreya [7K]2 years ago

4 0

Answer: Found it by web and solving

Step-by-step explanation: L = W + 4

LW = 60

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LW = 60

(W + 4)W = 60

W^2 + 4W + (-60) = 0

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above is in quadratic equation form: ax^2 + bx + c = 0

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use the quadratic formula to solve for two solutions:

x = ( -b +- sqrt( bb - 4ac ) ) / 2a

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the two solutions are:

W = 6

W = -10

the negative solution doesn't make sense for length, so use the positive solution.

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L = 10

W = 6

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Read 2 more answers

cert 22.2 U To 3. Draw an area diagram to find (0.36) (0.53). Label and organize your work so that it can be followed by others.

Masteriza [31]

The result of the product of (0.36) and (0.53) is 0.1908

<h3>How to determine the product</h3>

The product expression is given as:

(0.36) * (0.53)

Rewrite the product as follows:

$(0.36) * (0.53) = (0.3 + 0.06) * (0.5 + 0.03)$

Expand the product

$(0.36) * (0.53) = 0.3 * (0.5 + 0.03)+ 0.06 * (0.5 + 0.03)$

Expand

$(0.36) * (0.53) = 0.15 + 0.009+ 0.03+ 0.0018$

Evaluate the sum

$(0.36) * (0.53) = 0.1908$

See attachment for the area diagram of the product