The equation for the cross section of a parabolic telescope mirror is
1 answer:
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Answer:
1) Option B - 25.12 ft
2) Option C - 24.1 ft
Step-by-step explanation:
1) Given : The circular rug has a diameter of 8.2 feet.
To find : Which measurement is closest to the circumference of the rug in feet?
Solution :
The circumference of rug is given by
Where, d is the diameter = 8.2 feet.
The most closest measurement is 25.12 ft.
Therefore, option B is correct.
2) Given : A circle has a diameter of 5.2 feet.
To find : Which measurement is closest to the circumference of the circle in feet?
Solution :
The circumference of circle is given by
Where, d is the diameter = 5.2 feet.
The most closest measurement is 24.1 ft.
Therefore, option C is correct.
Answer:
10 and 2.4
Step-by-step explanation:
100 is 10*10 so: = 10
5.75 is a decimal number
= 2.39≈ 2.4