I need help with which equations represents proportional relationships
1 answer:
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Answer:
424 cm²
Step-by-step explanation:
The figure is composed of a square and a trapezium on top
A of square = 18² = 324 cm²
A of trapezium = h (b₁ + b₂ )
where h is the perpendicular height and b₁, b₂ the parallel bases
Here h = 8, b₁ = 18 and b₂ = 7 , then
A = 0.5 × 8 × (18 + 7) = 4 × 25 = 100 cm²
Area of hexagonal park = 324 + 100 = 424 cm²
Answer:
<h2>$212.8</h2>Step-by-step explanation:
If the car loses 11.1% per year, we need to calculate how much money is that:
; this value is the lost per year.
Now, in order to calculate this loss per month, we divide it by 12:
Hence, the monthly value decrease is $212.8, rounding it to the tenth.