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Advocard [28]
3 years ago
5

Suppose two rectangles are similar with a scale factor of 2. What is the ratio of thier areas? Explain.

Mathematics
1 answer:
Anton [14]3 years ago
3 0

Answer:

4

Step-by-step explanation:

From the question,

Since both rectangle has a scale factor of 2,

L₁/L₂ = 2

Where L₁ and L₂ are the length of the first and second rectangle respectively

L₁ = 2L₂................ Equation 1

Also,

W₁/W₂ = 2............ Equation 2

Where W₁ and W₂ are the Width of the first and second rectangle respectively

W₁ = 2W₂

Area of a rectangle = Length × width

Area of first rectangle = L₁×W₁ = 2L₂×2W₂ = 4L₂W₂

Area of second rectangle = L₂×W₂= L₂W₂

The ratio of area = Area of the first rectangle/Area of the second rectangle = 4L₂W₂/L₂W₂ = 4

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2 years ago
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Answer:

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Step-by-step explanation:

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The interest earned is the difference between her account balance and the amount she deposited:

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<em>Account value calculation</em>

The future value of the initial $300 deposit after 8 years is ...

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for principal P earning annual rate r compounded n times per year for t years.

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The future value of the sum of $150 deposits monthly (at the beginning of the month) will be ...

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_____

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