Which number is the discriminant of a quadratic equation that has no solution?

Mathematics

1 answer:

harkovskaia [24]3 years ago

8 0

Answer:

-4

Step-by-step explanation:

If the discriminant is negative there can be no real number solution because the square root of a negative number does not exist (in real numbers).

In the Quadratic Formula, if $b^2-4ac$ is negative, then you can't find $\sqrt{b^2-4ac}$ .

You might be interested in

Which function is the inverse of function f? <br> f(x)=9x^2–12

Leona [35]

Answer: D

Step-by-step explanation:

If the equation is f(x) = 9x^2 -12, you can solve for the inverse by switching the x and y like this.

x = 9y^2-12.

Then you solve for y.

x = 9y^2-12.

x+12=9y^2

y^2=(x+12)/9

y=sqrt((x+12)/9)

y=sqrt((x+12))/3 which is D

4 0

3 years ago

Need people to talk sorry brainly

lions [1.4K]

Answer:

sup how you doin

6 0

4 years ago

Find the slope of the line contain the given pair of points (-6,4) and (1,0)

EastWind [94]

$(-6,4) \\
x_1=-6 \\
y_1=4 \\ \\
(1,0) \\
x_2=1 \\
y_2=0 \\ \\
\hbox{the slope}=\frac{y_2-y_1}{x_2-x_1}=\frac{0-4}{1-(-6)}=\frac{-4}{1+6}=-\frac{4}{7}$

The slope is -4/7.

8 0

3 years ago

Read 2 more answers

What is the approximate side length of each square

alexandr1967 [171]

Answer: $9\ units$

Step-by-step explanation:

You need to use the following formula for calculate the area of a square:

$A=s^2$

Where "s" is the lenght of any side of the square.

You know that the area of a mural is $81\ units^2$ . Then, you can substitute this area into the formula and solve for "s", in order to find the side lenght of the mural.