(2x + 1)(x - 3)(x - 2)
(2x + 1)(x - 3) = 2x^2 - 6x + x - 3 = 2x^2 - 5x - 3
(x - 2)(2x^2 - 5x - 3) = -2(2x^2 - 5x - 3) + x(2x^2 - 5x - 3) =
-4x^2 + 10x + 6 + 2x^3 - 5x^2 - 3x =
2x^3 -9x^2 + 7x + 6 <=====
The probability that would be the least likely to occur would be the lowest value fraction.
This would be answer choice A. 1/4.
Answer:
1. 36
2.122
3.122
4.38
Step-by-step explanation:
Answer:
The mean will stay the same.
The standard deviation will decrease.
Step-by-step explanation:
For the 5 cards, she has received, the mean will be:
μ=(∑x)/n
=125/5
=25
The mean is 25 and the standard deviation is 10.
σ=10
If a new card is received with $25, then the sum will be $150
So the new mean will be:
μ'=(∑x)/n
=150/6
=25
And the new standard deviation will be:
σ'= 9.12
We can clearly see that
μ= μ'
and
σ> σ'
So the mean will remain the same and standard deviation will decrease.
.
The correct answer is 43. hope i helped:)
