Answer:
8.1
Step-by-step explanation:
The perimeter of a circle means the circumference. In this question it says the perimeter of a quarter circle is 17.85 miles and we want to find the quarter circle’s radius.
We know that the perimeter of the quarter circle is 17.85 which means that the 2 radii and the circumference of the circle sum to 17.85.
The formula to work out the perimeter of a quarter circle is
. We can form an equation to work out the radius so,
= 17.85
→ Multiply everything by 2 to get rid of the fraction
4r + π = 35.7
→ Minus π from both sides to isolate 4r
4r = 32.55840735
→ Divide both sides by 4 to isolate 4
r = 8.139601837
The radius of the quarter circle is 8.1 miles to 1 decimal place
The fall of the Zhou dynasty began a period referred to as the Warring States period. The Warring states period consisted of essentially seven states engaging in war with each other. The Zhou Dynasty lasted longer than any other Chinese dynasty, but the power of the dynasty lasted for a shorter period of time than their reign.
Answer:
40%
Step-by-step explanation:
Answer: 116y+88
Step-by-step explanation:
<u>Distribute:</u>
60y+120+56y-32
<u>Combine like terms:</u>
116y+88
Answer:
V=14.14ft^3
Step-by-step explanation:
V=4/3(π)1.5^3
=4/3(π)3.375
=14.14ft^3