Answer:
16 ft²
Step-by-step explanation:
The complete question is attached.
A trapezoid is a quadrilateral (has four sides) with one a parallel base. The base angles and the diagonals of an isosceles trapezoid are equal.
The area of a trapezoid = [(sum of the parallel bases) / 2] * height of the trapezoid.
Given that the parallel bases are 3 ft and 5 ft, while the height of the trapezoid is 4 ft. Hence:
The area of a trapezoid = [(3 + 5)/2] * 4
The area of a trapezoid = 16 ft²
If the last one is supposed to be 7(8+3), it would be equivalent to 56+21
Answer:
A.) negative twenty-seven over forty
Step-by-step explanation:
Screenshot below will explain the answer


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- A 3 dimensional figure with 5 sides
- it has 3 rectangles with dimensions 28 ft and 25 ft
- And 2 triangles with base =30 ft and height = 20 ft

- Total surface area of figure


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❒ Area of given figure

Answer:
25
Step-by-step explanation:
Easy! You plug in 3 for n! H(3) = 3^3 - 2
3^3 = 27 - 2 = 25