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3 years ago

9

I need help please?!!

1 answer:

Sveta_85 [38]3 years ago

8 0

Answer:

72

Step-by-step explanation:

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- What is the area of the figure below? Use 3.14<br> for T.<br> 7 cm<br> 22 cm<br> 18 cm

ziro4ka [17]

Answer: $\Large\boxed{Total~area=586.17~cm^2}$

Step-by-step explanation:

<h2>PART I: Find the area of the triangle</h2>

<u>Given information</u>

$Height=7~cm$

$Base=18~cm$

<u>Given formula</u>

$A=b\times h\times\dfrac{1}{2}$

$A=Area\\b=base\\h=height\\$

<u />

<u>Substitute values into the formula</u>

$A=(7)\times (18)\times\dfrac{1}{2}$

<u>Simplify by multiplication</u>

$A=(7)\times 9$

$A=63~cm^2$

<h2>PART II: Find the area of the rectangle</h2>

<u>Given information</u>

$Height = 18~cm$

$Base=22~cm$

<u>Given formula</u>

$A=b\times h$

$A=Area\\b=base\\h=height\\$

<u />

<u>Substitute values into the formula</u>

$A=(22)\times (18)$

<u>Simplify by multiplication</u>

$A=396~cm^2$

<h2>PART III: Find the area of the half-circle</h2>

<u>Given information</u>

Diameter = 18 cm

<u>Given formula</u>

$A=(\dfrac{d}{2} )^2\times \pi \div2$

$A=Area\\d=diameter$

<u>Substitute values into the formula</u>

$A=(\dfrac{18}{2} )^2\times (3.14) \div2$

<u>Simplify the fraction</u>

$A=(9 )^2\times (3.14) \div2$

<u>Simplify the exponents</u>

$A=81\times (3.14) \div2$

<u>Simplify by multiplication</u>

$A=254.34\div2$

<u>Simplify by division</u>

$A=127.17~cm^2$

<h2>PART IV: Find the total area</h2>

<u>Given formula</u>

$Total~area=Triangle+Rectangle+circle~(half)$

<u>Substitute values into the formula</u>

$Total~area=(63)+(396)+(127.17)$

<u>Simplify by addition</u>

$Total~area=459+(127.17)$

$\Large\boxed{Total~area=586.17~cm^2}$

Hope this helps!! :)

Please let me know if you have any questions

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2 years ago

0.00065 in Standard form

umka2103 [35]

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Carlos made a scale model of his house. The actual width is 30 feet, and the actual length is 45 feet. If the model has a width

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Hello!

Let's make a proportion:

$\frac{30}{45} = \frac{6}{x}$

Cross multiply

45 × 6 = 270

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$\framebox {The length is 9 inches}$

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Is there an answer to this equation such as 2x-3+8=4?

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S_A_V [24]

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Step-by-step explanation:

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