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tia_tia [17]
3 years ago
5

Can anyone help me out with this Adding and Subtracting Radicals? Answers must be simplified radicals. Ty in advance! ❤️

Mathematics
1 answer:
earnstyle [38]3 years ago
6 0

Answer: the first one is 9 √ 5   the second one is  250√  2 + 16 + 242i

the third one is 19√6

Step-by-step explanation:

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4 years ago
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Type the correct answer in the box. assume π = 3.14. and round your answer to the nearest hundredth. at the rate of $2.00 per sq
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The cost of painting the rectangular board with a semicircular top is $31.065 to the nearest hundredth.

<h3>How to find the area of the composite figures?</h3>

To find area of the composite figures,

  • Separate the figure.
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  • Add the area of all the individual figures to get the total area of composite figures.

The dimentions of the rectangle is 3 by 4 foot. The area of the rectangle is,

A_r=3\times4\\A_r=12\rm \;ft^2

The radius of the semicircle is 1.5 m. The area of the semicircle is,

A_{sc}=\dfrac{1}{2}\pi\times(1.5)^2\\A_{sc}=\dfrac{1}{2}(3.14)\times(1.5)^2\\A_{sc}=3.5325\rm\; ft^2

The area of the composite figure is,

A=12+3.5325\\A=15.5325\rm\;ft^2\\

The rate of  painting is $2.00 per square foot. Thus the cost to paint the figure is,

A=15.5325\times2\\A=31.065

Hence, the cost of painting the rectangular board with a semicircular top is $31.065 to the nearest hundredth.

Learn more about the area  of composite figures here;

brainly.com/question/15981553

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3 years ago
How to do two step equations?
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