<span>y = 2x + 3
</span><span>2x - y = 7
Substituting the value of y,
2x - (2x + 3) = 7
2x - 2x - 3 = 7
-3 </span>≠ 7
Hence, there is no solution to this equation. This equation does not even exist.
That is the distributive property
(f.g)(x) = (4x + 6)(-5x) = -20x^2 -30x
ok done. Thank to me :>
This is the concept of probability, we are required to calculate for the probability of rolling a 4 with a single die four times in a row;
To solve this we proceed as follows;
The probability space of a die is x={1,2,3,4,5,6}
The probability of a die falling on any of this number is:
P(x)=1/6
Thus the probability of rolling a 4 with a single die four times which makes up mutually exclusive events will be:
1/6*1/6*1/6*1/6
=(1/6)^4
=1/1296
The answer is B] 1/1296