3 years ago

If a=2b, then 5+7(a-2b)=

Mathematics

2 answers:

victus00 [196]3 years ago

8 0

I hope this helps you

5+7.(2b-2b)

5+7.0

5+0

5

sesenic [268]3 years ago

7 0

Plug 2b for a

5 + 7(2b - 2b) =

Combine 2b - 2b = 0

5 + 7(0)

7(0) = 7 * 0 = 0

5 + 0 = ?

5 + 0 = 5

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3 years ago

What is the area of this figure?

nalin [4]

Answer:

<em>290.5 square miles</em>

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$Dimensions of Rectangle 1 - Height ; 5 mi, Length ; 7 mi,\\Area of Rectangle 1 - Height * Length = 5 mi * 7 mi = 35 mi^2\\\\Dimensions of Rectangle 2 - Height ; 18 mi, Length ; 8 mi,\\Area of Rectangle 2 - Height * Length = 23 mi * 8 mi = 184 mi^2\\\\Dimensions of Mini Right Triangle - Height ; 11 mi, Base ; 8 + 5 = 13 mi,\\Area of Mini Right Triangle - 1 / 2 * Base * Height = 1 / 2 * 13 mi * 11 mi = 71.5 mi^2,\\\\Area of Figure = 35 mi^2 + 184 mi^2 + 71.5 mi^2 = 290.5 square miles$