Math..
the circumference (c)c of a circle is 1818 centimeters. which formula can you use to find the radius (r)r if you know that c=2πrc=2πr?

a. r=c2πr=c2π

b. r=2cπr=2cπ

c. r=πc2r=πc2

d. r=2πc

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?