A discriminant of -17 indicates what type of roots?

According to question D = -17 , i.e. D<0 . So , it's roots will be imaginary or complex roots !

Step-by-step explanation:

Here we need to tell , A discriminant of -17 indicates what type of roots . Let's find out:

For a general quadratic equation in form of , Discriminant is given by :

⇒

We have following 3 cases for discriminant as :

D>0

When discriminant is greater then zero we can say that , function has 2 roots which are distinct !

D=0

When discriminant is equal to zero , we can say that function has only one root !

D<0

When discriminant is less than zero we can say that the function has imaginary root or complex roots in form of .

According to question D = -17 , i.e. D<0 . So , it's roots will be imaginary or complex roots !

-17 has imaginary roots

Explanation:

A discriminant of -17 indicates Imaginary (non-real) roots.

The discriminant of a polynomial equation is a value computed from the coefficients which helps us determine the type of roots it has - specifically whether they are real or non-real and distinct or repeated.

The discriminant indicated normally by  Δ , is a part of the quadratic formula used to solve second degree equations.

Given a second degree equation in the general form:

a x² + bx + c = 0

The discriminant is:

Δ  =  b ² - 4ac

The discriminant can be used to characterize the solutions of the equation as:

1)  Δ  >  0  - two separate real solutions;

2)  Δ  =  0  - two coincident real solutions (or one repeated root);

3)  Δ  <  0 -  no real solutions.

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

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