Answer = 4
10^2 = 100
8^2 = 64
100 + 64 = 164
180 - 164 = 16
Square root of 16 = 4
Hello :
look : 40 = 2×20 80 = 2×40
knowing tan 20º by calculator , for 40° , 80°use the identity :
tan (2x) = (2tan(x))/(1-tan²(x))
A) (1,3)
1st number is x
2nd number is y
count to the right 1
up 3
(1,3)
Answer:
21.5%
Step-by-step explanation:
volume of cube: 36x36x36
volume of cylinder: πx18²x36
Cylinder percentage: (πx18²x36) / 36x36x36 = π / 4 = 0.785
percentage of empty space: 1 - 0.785 = 0.215 (21.5%)