Answer:

Step-by-step explanation:
tan(30°) = 
cot(30°) = 
sin(60°) = 

Answer:
Step-by-step explanation:
AC = n, DF = 28 cm

9514 1404 393
Answer:
x = 7
Step-by-step explanation:
We can write a proportion relating the short segment to the full length:
(x+1)/18 = 4/(4+5)
x +1 = 8 . . . . . . multiply by 18 and simplify
x = 7 . . . . . . . . subtract 1
Answer:
y= 169 − 
Step-by-step explanation:
Volume of a sphere of radius r is
V = (4/3)πr³
r = 9
V = (4/3)π(9³) = 12(9²)π = 972 π
Answer : 972π cubic units