There are 2 roots for this equation.
The discriminant is given by b²-4ac. This is what goes under the square root in the quadratic formula. Since we will be taking the square root of this, if the discriminant is less than 0, there are no real roots; you cannot have a real square root of a negative number.
If the discriminant is equal to 0, there is 1 real root; the square root of 0 is 0, so the quadratic formula would yield one answer.
If the discriminant is greater than 0, there are 2 real roots. This is because taking the square root of a positive number gives a positive and negative result.
b in our equation is -7, a is 3 and c is 4:
b²-4ac = (-7)²-4(3)(4) = 49 - 48 = 1
There is 1 real root.
What statements are there? (If there are 3 batches, you'd have 1 cup of milk, just FYI).
Answer:
Step-by-step explanation:
Given 3x-4y=65
Y=4
So 3x-4×4=65
3x-16=65
3x=65+16
X=81/3
X=27
So value of X is 27
Answer:
see the explanation
Step-by-step explanation:
Let
t ---> the number of years since 2017
y ---> the population of the Tallahassee metropolitan area
we have
we have
---> initial value or y-intercept (population for t=0)
substitute the given values
For the year 2025
we have
substitute in the formula
using a graphing tool
The graph in the attached figure
