Answer:
1312.5 cubic feet
Step-by-step explanation:
Let the swimming pool be a rectangular prism
The volume of a rectangular prism is:
Volume = length * width * depth
Length = 25 (given)
Width = 15 (given)
The depth is 4ft, but they want the volume when water is 6 inches FROM THE TOP, that is, out of 4 feet, 6 inches (1/2 feet) IS NOT FILLED. So the depth of water is
4 - 1/2 = 3.5 feet
So, we can say
Depth = 3.5 (found)
Hence, the volume would be:
Volume = 25 * 15 * 3.5 = 1312.5 cubic feet
Answer:
Not sure explain it again
Step-by-step explanation:
B
2x²-6x+8=0
x²-3x+4=0
D=b²-4ac=9-16=-7
x=(3+/-i√7)/2
correct answer is the last one
Answer:
A. 3 inches and 8 inches.
Step-by-step explanation:
Because in a triangle sum of any two sides is always grater than the third side.
10+3>8
8+3>10
10 + 8>3
The expression for the area of the triangle is 
units
Explanation:
Given that height of the triangle is 
units
The base of the triangle is 
<u>Area of the triangle:</u>
The area of the triangle can be determined using the formula,
where 
and 
Substituting the above values in the formula, we get,
Cancelling the common terms, we get,
Multiplying the terms, we have,
Hence, the expression for the area of the triangle is units.
