Answer:
Step-by-step explanation:
where r is the radius.
The radius is 11 and theta(in radians) is pi so
Which quadratic equation models the main cable
1 answer:
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Answer: b=2(square root of 2) and a=4
Step-by-step explanation:
Since this is a 45-45-90 triangle we know that side b is equal to .
In a 45-45-90 triangle, the hypotenuse is equal to this means in order to find missing side length a, we have to multiply
this will give us 4
so the missing side lengths are, and
Answer:
We get w = 1.508 feet.
Step-by-step explanation:
Let w be the width of the border.
The diameter of the pool will be 10 feet.
The depth will be 3 inches. So, we will convert it to feet.
3 inches =
The circular area including pool and the border, radius =
Border area = Total area - pool area
=
Putting pi = 3.14 and solving the expression we get the following equation:
As given one cubic yard of concrete is to be used, this is the volume to be used.
1 cubic yard = 27 cubic feet
Now using the volume given and thickness of this area that is 0.25 feet.
Solving this quadratic equation, we get w = 1.508 feet and w = -11.508 feet.
Neglecting the negative value, we get w = 1.508 feet.