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
Answer:
130 pounds
Step-by-step explanation:
The floor has six sections and supports a total weight of 120 pounds.
Thus,
the amount of weight supported by each section of the floor =
= 20 pounds
But, the floor can support maximum weight of 900 pounds.
Thus,
maximum weight that can be supported by each section of the floor =
= 150 pounds
Let the maximum additional wight be represented by x. The maximum additional weight that each section of the floor can support can be determined by;
150 = 20 + x
x = 150 - 20
x = 130
The maximum additional weight that can be supported by each section of the floor is 130 pounds.
-225/-15 will give us a positive answer since we are dividing by two negative values, so we can rule out answers 1 and 2 first off.
then we solve to find the answer -225/1*-1/15 = 15
hope this helps! thanks!