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3 years ago

5

lvava is calculating the area of a circle with a radius of 3/4 which of the following gives the BEST estimation of the area?

1 answer:

STALIN [3.7K]3 years ago

8 0

Answer:

28.274

Step-by-step explanation:

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2 years ago

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3 years ago

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olga55 [171]

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3 years ago

The packaging lists a model airplane’s length as 10.5 in. It also gives the scale as 1:83. What is the length of the actual airp

Lana71 [14]

$\bf \cfrac{\stackrel{model}{length}}{\stackrel{actual}{length}}\qquad 1:83\qquad \cfrac{1}{83}\implies \cfrac{1}{83}=\cfrac{10.5}{x}\implies x=\cfrac{83\cdot 10.5}{1}
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x=871.5~inches
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\textit{there are 12 inches in 1 foot, thus }
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871.5~\underline{in}\cdot \cfrac{ft}{12~\underline{in}}\implies 72.625~ft 
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3 years ago