Answer:
0.140625
Step-by-step explanation:
Given that multiple-choice questions each have four possible answers (a comma b comma c comma d ), one of which is correct. Assume that you guess the answers to three such questions.
Each question is independent of the other with constant probability
p = Prob for correct guess = 1/4 = 0.25
q = prob for wrong guess = 1-p = 0.75
Hence
, since each question is independent of the other
=
Hello there,
When you reflect a point over the x-axis the x-coordinate stays the same while the y-coordinate is its opposite.
In the given point (4,1) when it is reflected over the x-axis you would get (4, -1).
Hope I helped,
Amna
Answer:
.
Step-by-step explanation:
We are given 
and 
are zeros of the polynomial 
.
We want to find the value of 
if 
.
Lets use veita's formula.
By that formula we have the following equations:
(-b/a where the quadratic is ax^2+bx+c)
(c/a)
Let's simplify those equations:
If and , then 
.
Let's solve this for k:
Subtract 6 on both sides:
Find a common denominator:
Simplify:
.
The expected value would be 12 as it has the highest P(outcome).
Answer:
48 is right!!
Step-by-step explanation:
the pattern is +10 +9 +8 +7 +6 +5 and so on
