Answer:
11/45 is the correct answer
Step-by-step explanation:
2/3 x 2/3 = 4/9
1/3 x 3/5 = 3/15
convert 4/9 - 3/15 common denominators
20/45 - 9/45 = 11/45
25 = 5*5
405 = 81*5
therefore, 25/405 = (5*5)/(81*5)=5/81
A tautology will have an infinite number of solutions, as it is true for all possible values of the variable by definition.
Example: 3(x+2) = 3x+6
All other linear equations in one variable will have one solution, which may include values that are undefined or indeterminate.
Examples:
... 3x-2 = 7 . . . solution is x=3
... x = 0/0 . . . . solution is an indeterminate number
... x = 1/0 . . . . solution is undefined
Answer:
D
Step-by-step explanation:
Sector of Area=(theta/360)*pi*r^2
Sector of area=(135/360)*pi*19^2=(1083)/8 pi
