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Darya [45]
2 years ago
10

This composite figure is made up of three simpler shapes. What is the area of

Mathematics
1 answer:
neonofarm [45]2 years ago
7 0

Answer:

116

Step-by-step explanation:

Just took test

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an architect wants to build three similar triangles such that the ratio of the middle triangle. The smallest one has side length
vampirchik [111]

Answer:  15

<u>Step-by-step explanation:</u>

small:     5     12      13

middle:  __   36     39

large:    45   108    117

Notice that to get from the small to the large, multiplied by 9

5(9) = 45    12(9) = 108    13(9) = 117

That is because the sides are proportional \dfrac{5}{45}=\dfrac{12}{108}=\dfrac{13}{117}\rightarrow\dfrac{1}{9}

To get from small to middle, multiply by 3  

5(3) = 15     12(3) = 36    13(3) = 39

To solve it using proportions:

\dfrac{5}{x}=\dfrac{12}{36}\\\\\\\text{Cross Multiply and solve for x:}\\5(36)=12x\\\\\dfrac{5(36)}{12}=x\\\\5(3)=x\\\\\large\boxed{15}=x

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3 years ago
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scZoUnD [109]

Step-by-step explanation:

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What s the domain of f(x)=3x-2
Dmitry_Shevchenko [17]
Domain of: 3x-2

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