The radius is half the diameter. 19*2=38. The diameter is 38.
The length of the daylight was 9 hr 10 min
Answer:
see below
Step-by-step explanation:
1)
set A is already a set of positive odd numbers below 10 so the intersection of the sets is simply {1,3,5,7,9}
2)
this ask, what do sets A,B, and C have in common?
every set has yellow and green so the intersection is
{yellow, green}
let x be how far up the wall ladder reaches
by Pythagoras theorem
x^2+5^2=13^2
x^2 =(13^2)-(5^2)
x= square root of 144
x= 12 or x =-12(rej,x>0)
hence ladder reaches 12 foot up the wall