How can you tell when a quadratic equation has two identical, rational solutions?when the radicand is negative
when b in the quadratic formula is greater than the radicand
when the radicand equals zero
when the radicand is not a perfect square

Answers

Answer 1

Answer: The discriminant of a quadratic equation determines the nature of the roots of the equation whether they are rel or imaginary. The formula for determining the discriminant is
d = b2 - 4acwhen there are two identical real roots, then the discriminant is equal to zero. The answer is C.

Answer 2

Answer:

Answer:

When the radical equals 0 or C.

Step-by-step explanation: I got it right on a test.

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Write an equation that requires at least three steps to solve and whose solution is x=3.5

Answers

The expression can be written as (2x)² + 1 = 50

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the solution for the value of x is 3.5. The expression will be solved as below:-

2x = 7 (1 step)

(2x)² = 49 (2 steps)

(2x)² + 1 = 50 ( 3 steps)

Therefore, the expression can be written as (2x)² + 1 = 50.

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Answer:

(2x)^2 + 1 = 50

Step-by-step explanation:

x = 3.5

2x = 7 (1 step)

(2x)^2 = 49 (2 steps)

(2x)^2 + 1 = 50 ( 3 steps)

Which of the following items is the most likely to have a mass of 3 mg?A : Cat

B : Pumpkin

C : Ant

D : Piano

Answers

C.the ant would be the most likely thing to have a mass of three grams.

What is the value of the expression |x| + |y + z| when x = –6, y = –3, and z = –5?

Answers

x=-6, y=-3, z=-5

|x|+|y+z|=|-6|+|-3-5|=6+|-8|=6+8=14

Identify the domain for the following ordered pairs: (3, 5) (-2, 4) (5, 5) (-1, 1).A. (5, 4, 5, 1)
B. (-5, -4, -5, -1)
C. (3, -2, 5, -1)
D. (-3, 2, -5, 1)

Answers

Domain is the x value's
to get your answer, get all the x - values
i.e
(3, -2, 5, -1)
So, You're correct option is C.

Factor the polynomial 6x^2+23x+7

Answers

(2x+7)(3x+1)
Hope this helps

You can model the population of a certain city between the years 1965 and 1995 by the radical function P(x)= 75,000 cubed root of (x-1940) . Using this model, in what year was the population of that city 245,000?