Answer: It will be needed 864 square feet of glass to cover the Skywalk floor.
Step-by-step explanation: The figure below shows the area in question.
Area of a circle is given by

The walkway is a semicircle. Then, area will be:

The area that will be covered with glass is the area between the outer and the inner circles. So, area is




864
<u>To cover the Skywalk floor is needed </u><u>864</u>
<u> of glass</u><u>.</u>
Puting it into the quadrait equation ((-b+-[b^2-4ac]^(1/2)/2a), we get that x= 31^(1/2)-5 or 31^(1/2)+5
Answer:
A. 4
Step-by-step explanation:
First, we can try the first option. 2/4 is equivalent to 6/12 when you multiply the fraction by 3 to get a common denominator. Since 6/12 is larger than 4/12, and the question has 1 answer, 4 is the only value that satisfices the statement and is the answer.
D
For these type of problems download photo math
It’ll be faster than here with steps!
30 because 0.3 * 100 = 30