We have been given Marley was asked to solve 
using the Quadratic Formula. She found the discriminant first and decided she did not need to continue with the Quadratic Formula.
We are asked to determine whether Marley is correct or not.
We know when an equation is in form 
, we can use discriminant to check for the real solutions of equation.
If 
, then the equation will have two real solutions.
If 
, then the equation will have one real solution.
If 
, then the equation will have no real solutions.
Let us find discriminant.
Since 
, therefore, the equation will have no real solutions, so Marley is correct.
Answer:
8 x 5 is 40
he uses a tool that has 40 on it
Answer:
90% Confidence interval: (8463.1,8528.9)
Step-by-step explanation:
We are given the following in the question:
Sample mean, 
= 8496 lb
Sample size, n = 125
Alpha, α = 0.10
Population standard deviation, σ = 100
90% Confidence interval:
Putting the values, we get,
"Linear function" means the highest degree of any term is 1.
Equation 1: degree is 2
Equation 2: degree is 2
Equation 3: degree is 1 . . . . this is your linear function
Equation 4: degree is 4
To compute for tax, we can form the expression shown below:
Sales*5.5%=Sales Tax
We are given with some values on which we used in the problem and solve the unknown such as:
Sales*0.055=$56
Sales=$56/0.055
Sales=$1,018.18
The answer is $1,018.18 was sold on that day.
