Is -14/3 greater than -4
2 answers:
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ANSWER
EXPLANATION
We want to find an odds ratio from a given probability, which is
We subtract the numerator 1 from the denominator 4 to obtain
The answer is the number of unfavorable outcomes.
The Odds can then be expressed as
The ratio of favourable outcomes to unfavorable outcomes.
Or
EXPLANATION
We want to find an odds ratio from a given probability, which is
We subtract the numerator 1 from the denominator 4 to obtain
The answer is the number of unfavorable outcomes.
The Odds can then be expressed as
The ratio of favourable outcomes to unfavorable outcomes.
Or
Answer:
2
Step-by-step explanation:
So I'm going to use vieta's formula.
Let u and v the zeros of the given quadratic in ax^2+bx+c form.
By vieta's formula:
1) u+v=-b/a
2) uv=c/a
We are also given not by the formula but by this problem:
3) u+v=uv
If we plug 1) and 2) into 3) we get:
-b/a=c/a
Multiply both sides by a:
-b=c
Here we have:
a=3
b=-(3k-2)
c=-(k-6)
So we are solving
-b=c for k:
3k-2=-(k-6)
Distribute:
3k-2=-k+6
Add k on both sides:
4k-2=6
Add 2 on both side:
4k=8
Divide both sides by 4:
k=2
Let's check:
:
I'm going to solve for x using the quadratic formula:
Let's see if uv=u+v holds.
Keep in mind you are multiplying conjugates:
Let's see what u+v is now:
We have confirmed uv=u+v for k=2.