The value of b^2-4ac is known as the discriminant of a quadratic function, and can tell you how many roots exist of this function depending on what it is equal to.
Start by moving the -1 to the other side, as we need this function to equal zero.
2x^2 + 3x + 1 = 0
This is now the standard form ax^2 + bx + c = 0. Plug each value that corresponds into the discriminant equation.
b^2-4ac
(3)^2 - 4(2)(1)
9 - 8
1
The value of the discriminant is 1, meaning that two real roots exist for the function described.
Answer:
The answer is A=4500(1 + (0.052 × 2.5)) = 5085
Step-by-step explanation:
Since that is what you need the answer is C
Answer:
Y= -2x
Step-by-step explanation:
The correlation coefficient is calculated by the given formula
Here we have to find correlation coefficient for three ordered pairs, so n=3
Substituting all the values in the above formula,
r= -0.24
Answer:(a.13) Because I subtracted from each color. (b.14) because originally is 7 red 5 blue four green altogether the account of the marbles are 16 indirection is asked you to throw out three red so after you drop three red you are left with 5 red 5 blue 4 green
Step-by-step explanation: this is a mathematical question that could be answered and figured out multiple ways