9*9*8*7
You can choose 9 digits for the first digit, 9 Fót the second (because IT can be 0) and 8 Fót the third etc.. hope this helps
For this problem, I think the question is to find the values of x and y. Since there are two unknowns and two equations, this system may be solvable. But let's investigate first if the equations are independent.
y = 4x - 1 ----> eqn 1
12x = 3y + 7 ---> eqn 2
Substituting eqn 1 to eqn 2:
12x = 3(4x - 1) + 7
12x = 12x -3 + 7
12x - 12x = 7 - 3
0 = 4
It turns out that the system is not solvable because x cancels out. That means that the two given equations are dependent with each other.
Pi is an irrational number, which means it cannot be represented as a simple fraction, and those numbers cannot be represented as terminating or repeating decimals. Therefore, the digits of pi go on forever in a seemingly random sequence.
The slope of this line is -2.
rise/run
rise = 4
run = -2
4
------- = -2
-2
Using the points (1,0) & (0,2)
2 - 0 2
----------- = ----- = -2
0 - 1 -1
The circle with center O has two chords AC and EF which are of same length 9.07.
OD and OB are the two perpendiculars drawn from the center O to the two chords AC and EF .It represents the distance of the chords from the centre.
The circle theorem states: congruent chords are equidistant from the center.
OD is congruent to OB.
Option A is the right answer.
