Answer:
THE CORRECT OPTION IS " "
Step-by-step explanation:
The quadratic equation is defined as equation having degree 2.
The standard form of quadratic equation is :
.
where a, b, c are numbers and a cannot be equal to zero.
From the above statements we can say that " " is quadratic equations and rest options does not qualify the equations of quadratic equations.
Answer:
Claim is false
Step-by-step explanation:
Claim : A credit reporting agency claims that the mean credit card debt in a town is greater than $3500.
n = 20
Since n <30
So we will use t test
Formula :
s = standard deviation = 391
x = 3600
n = 20
Degree of freedom = n-1 = 20-1 = 19
α=0.10
So, using t table
= 1.72
t critical > t calculated
So we accept the null hypothesis
Hence we reject the claim that the mean credit card debt in a town is greater than $3500.
Answer:
Step-by-step explanation:
The expression for the right hand limit of f(x) is:
The expression can be simplified with some algebraic handling:
Let be , as
is approaching zero,
is positive and becomes bigger, diverging to
.